equal protection clause (Wisconsin) · Go Syfert
← Wisconsin issues

equal protection clause in Wisconsin

265 Wisconsin opinions name it 3 courts 1929–2026 23 in the last five years

The cases below were cited by Wisconsin courts in a sentence that names this issue. Sides come from how each citing opinion treated the case (Syfertize flag on that citation), so a case can appear on both: that is where the law is contested. A red or yellow chip is the case's own overall treatment.

Followed or applied (58)

CaseFollowedCited
State v. Postgreen
wis · 1995 · cited in 11 Wisconsin opinions naming this issue, 1999–2021
2 sentences

2021Thus, she asserts, § 51.20(1)(am) violates her right to equal protection of the laws. ¶33 "To prove an equal protection clause violation, the party challenging a statute's constitutionality must show that 'the state unconstitutionally treats members of similarly situated classes differently.'" State v. West, 2011 WI 83, ¶90 , 336 Wis. 2d 578 , 800 N.W.2d 929 (quoting Post, 197 Wis. 2d at 318 ).

2013For example, in Post, we found that in all but one of the equal protection challenges, "[t]he state's compelling interest in protecting the public provides the necessary justification for the differential treatment of the class of sexually violent persons." Post, 197 Wis. 2d at 321 . ¶57 In Post, we did, however, find that an equal protection violation existed because Chapter 980 did not allow a committed individual the right to request a jury at his or her discharge hearing.

311
Treiber v. Knollgreen
wis · 1987 · cited in 11 Wisconsin opinions naming this issue, 1987–2017
2 sentences

2016The equal protection clause "is designed to assure that those who are similarly situated will be treated similarly." Treiber v. Knoll, 135 Wis. 2d 58, 68 , 398 N.W.2d 756 (1987).

2016The equal protection clause "is designed to assure that those who are similarly situated will be treated similarly." Treiber v. Knoll, 135 Wis. 2d 58, 68 , 398 N.W.2d 756 (1987).

311
Sambs v. City of Brookfieldgreen
wis · 1980 · cited in 10 Wisconsin opinions naming this issue, 1981–2017
2 sentences

2017In reviewing the constitutionality of a statute on an equal protection challenge, we begin with "the principle repeatedly stated" by our supreme court, as well as the United States Supreme Court, that "all legislative acts are presumed constitutional." Sambs v. City of Brookfield, 97 Wis. 2d 356, 370 , 293 N.W.2d 504 (1980).

2017In reviewing the constitutionality of a statute on an equal protection challenge, we begin with "the principle repeatedly stated" by our supreme court, as well as the United States Supreme Court, that "all legislative acts are presumed constitutional." Sambs v. City of Brookfield, 97 Wis. 2d 356, 370 , 293 N.W.2d 504 (1980).

310
State v. Quintanagreen
wis · 2008 · cited in 5 Wisconsin opinions naming this issue, 2010–2025
2 sentences

2025Equal Protection ¶50 “The equal protection clause requires that the legislature have reasonable and practical grounds for the classifications that it draws.” Quintana, 308 Wis. 2d 615, ¶79 . “[T]he state retains broad discretion to create classifications so long as the classifications have a reasonable basis.” State v. McManus, 152 Wis. 2d 113, 131 , 447 N.W.2d 654 (1989).

2021The equal protection clause protects by requiring that the State “have reasonable and practical grounds for the classifications that it draws.” State v. Quintana, 2008 WI 33, ¶79 , 308 Wis. 2d 615 , 748 N.W.2d 447 .

35
State v. Asfoorgreen
wis · 1977 · cited in 5 Wisconsin opinions naming this issue, 1980–2016
2 sentences

2016Among his many arguments, Asfoor contended that a conviction under Wis. Stat. § 940.24 (1) (1973-74) "violate[d] the equal protection clause of the Fourteenth Amendment and the Eighth Amendment in that a conviction of injury by negligent use of a weapon is a felony while conviction of homicide by negligent use of a weapon, sec. 940.08, [1973-74], is a misdemeanor." Asfoor, 75 Wis. 2d at 437 .

2002That Radke is asserting an equal protection claim is demonstrated by his reliance on State v. Asfoor, 75 Wis. 2d 411, 440-41, 249 N.W.2d 529 (1977).

35
McGowan v. Marylandgreen
scotus · 1961 · cited in 4 Wisconsin opinions naming this issue, 1975–2014
2 sentences

2014Having rejected the premise that Act 10 implicates a fundamental right, the plaintiffs' equal protection claim necessarily fails under rational basis review. ¶76 While courts express various iterations of the rational basis test, we have often quoted the United States Supreme Court's articulation in McGowan v. Maryland, 366 U.S. 420, 425-26 (1961): 20 Generally, when considering an equal protection challenge, this court will uphold the statute if we find that the legislative classification is supported by a rational basis.

2014Having rejected the premise that Act 10 implicates a fundamental right, the plaintiffs' equal protection claim necessarily fails under rational basis review. ¶76 While courts express various iterations of the rational basis test, we have often quoted the United States Supreme Court's articulation in McGowan v. Maryland, 366 U.S. 420, 425-26 (1961): 20 Generally, when considering an equal protection challenge, this court will uphold the statute if we find that the legislative classification is supported by a rational basis.

34
Szarzynski v. YMCA, Camp Minikanigreen
wis · 1994 · cited in 4 Wisconsin opinions naming this issue, 1995–2000
2 sentences

2000Bethke's constitutional argument springs from certain language in Szarzynski v. YMCA, Camp Minikani, 184 Wis. 2d 875 , 517 N.W.2d 135 (1994), where the supreme court considered an equal protection challenge closely akin to the one before us.

2000Bethke's constitutional argument springs from certain language in Szarzynski v. YMCA, Camp Minikani, 184 Wis. 2d 875 , 517 N.W.2d 135 (1994), where the supreme court considered an equal protection challenge closely akin to the one before us.

34
Students for Fair Admissions, Inc. v. President and Fellows of Harvard Collegegreen
scotus · 2023 · cited in 3 Wisconsin opinions naming this issue, 2025–2026
2 sentences

2026Consequently, “no State has any authority under the equal-protection clause of the Fourteenth Amendment to use race as a factor in affording educational opportunities among its citizens.” Id. at 204 (citation omitted).

2026Consequently, “no State has any authority under the equal-protection clause of the Fourteenth Amendment to use race as a factor in affording educational opportunities among its citizens.” Id. at 204 (citation omitted).

33
City of Cleburne v. Cleburne Living Center, Inc.green
scotus · 1985 · cited in 3 Wisconsin opinions naming this issue, 1992–2005
2 sentences

2005Provided, however, that the legislature may, from time to time, by statute provide that a valid verdict, in civil cases, may be based on the votes of a specified number of the jury, not less than five-sixths thereof. [2] Article I, Section 9 of the Wisconsin Constitution states in relevant part: "Every person is entitled to a certain remedy in the laws for all injuries, or wrongs which he may receive in his person, property, or character; he ought to obtain justice freely, and without being obliged to purchase it, completely and without denial, promptly and without delay, conformably to the la

1992See Richards v. Cullen, 150 Wis. 2d 935, 942 , 442 N.W.2d 574, 577 (Ct. App. 1989). 12 Other, "intermediate" levels of scrutiny are applied to legislative classifications based on gender, which must be "substantially related to a sufficiently important governmental interest," and illegitimacy, which must be "substantially related to a legitimate state interest." Cleburne, 473 U.S. at 440-41 . 13 With respect to marital status, Phillips's only argument is that because marital status discrimination in employment is prohibited by the WFEA, "marital status classifications" should be subject to str

33
State v. Bleckgreen
wis · 1983 · cited in 3 Wisconsin opinions naming this issue, 1986–1989
33
Tomczak v. Baileygreen
wis · 1998 · cited in 7 Wisconsin opinions naming this issue, 1999–2018
2 sentences

2018State v. Smith , 2010 WI 16 , ¶ 12, 323 Wis. 2d 377 , 780 N.W.2d 90 . ¶37 In bringing an equal protection challenge, the challenging party must show that the statute "treats members of similarly situated classes differently." Castellani v. Bailey , 218 Wis. 2d 245 , 261, 578 N.W.2d 166 (1998).

2018State v. Smith , 2010 WI 16 , ¶ 12, 323 Wis. 2d 377 , 780 N.W.2d 90 . ¶37 In bringing an equal protection challenge, the challenging party must show that the statute "treats members of similarly situated classes differently." Castellani v. Bailey , 218 Wis. 2d 245 , 261, 578 N.W.2d 166 (1998).

27
State v. Hartgreen
wis · 1979 · cited in 7 Wisconsin opinions naming this issue, 1979–1995
2 sentences

1995One challenging the constitutionality of a statute bears "a heavy burden"; and where, as here, the claim is that a legislative classification violates the equal protection clause, the challenger "must prove abuse of legislative discretion beyond a reasonable doubt." State v. Hart, 89 Wis. 2d 58, 64 , 277 N.W.2d 843, 846 (1979). 6 *764 We use a "rational basis" test to evaluate such a challenge: the classification will be upheld if there is any rational basis to support it.

1995One challenging the constitutionality of a statute bears "a heavy burden"; and where, as here, the claim is that a legislative classification violates the equal protection clause, the challenger "must prove abuse of legislative discretion beyond a reasonable doubt." State v. Hart, 89 Wis. 2d 58, 64 , 277 N.W.2d 843, 846 (1979). 6 *764 We use a "rational basis" test to evaluate such a challenge: the classification will be upheld if there is any rational basis to support it.

27
State v. Smithgreen
wis · 2010 · cited in 6 Wisconsin opinions naming this issue, 2014–2019
2 sentences

2019Equal Protection Standards; Appropriate Level Of Scrutiny ¶19 " 'The equal protection clause requires that the legislature have reasonable and practical grounds for the classifications that it draws.' " State v. Smith , 2010 WI 16 , ¶15, 323 Wis. 2d 377 , 780 N.W.2d 90 (quoted source omitted). ¶20 Determining whether a statute violates the equal protection clause requires answering three questions: (1) does the statute create a distinct classification of citizens?; (2) does the statute treat the distinct class in a significantly different manner from those outside the class?; and (3) is the di

2019Equal Protection Standards; Appropriate Level Of Scrutiny ¶19 " 'The equal protection clause requires that the legislature have reasonable and practical grounds for the classifications that it draws.' " State v. Smith , 2010 WI 16 , ¶15, 323 Wis. 2d 377 , 780 N.W.2d 90 (quoted source omitted). ¶20 Determining whether a statute violates the equal protection clause requires answering three questions: (1) does the statute create a distinct classification of citizens?; (2) does the statute treat the distinct class in a significantly different manner from those outside the class?; and (3) is the di

26
Stanhope v. Brown Countygreen
wis · 1979 · cited in 6 Wisconsin opinions naming this issue, 1979–2005
2 sentences

2005See Sambs v. City of Brookfield, 97 Wis. 2d 356, 377-78 , 293 N.W.2d 504 (1980); Stanhope v. Brown County, 90 Wis. 2d 823, 842-44 , 280 N.W.2d 711 (1979) (both cases involved plaintiffs injured in automobile accidents due to highway defects; caps in Wis. Stat. §§ 81.15 and 895.43 limited recovery to $25,000). 6 ¶ 340.

2005See Sambs v. City of Brookfield, 97 Wis. 2d 356, 377-78 , 293 N.W.2d 504 (1980); Stanhope v. Brown County, 90 Wis. 2d 823, 842-44 , 280 N.W.2d 711 (1979) (both cases involved plaintiffs injured in automobile accidents due to highway defects; caps in Wis. Stat. §§ 81.15 and 895.43 limited recovery to $25,000). 6 ¶ 340.

26
Harris v. Kelleygreen
wis · 1975 · cited in 5 Wisconsin opinions naming this issue, 1979–2014
2 sentences

1994Ford Hopkins Co. v. Mayor, 226 Wis. 215, 222 , 276 N.W. 311 (1937)), in which the following five factors were identified as being relevant to an equal protection analysis: `(1) All classification must be based upon substantial distinctions which make one class really different from another. `(2) The classification adopted must be germane to the purpose of the law. `(3) The classification must not be based upon existing circumstances only.... `(4) To whatever class a law may apply, it must apply equally to each member thereof. `(5) That the characteristics of each class should be so far differe

1994Ford Hopkins Co. v. Mayor, 226 Wis. 215, 222 , 276 N.W. 311 (1937)), in which the following five factors were identified as being relevant to an equal protection analysis: `(1) All classification must be based upon substantial distinctions which make one class really different from another. `(2) The classification adopted must be germane to the purpose of the law. `(3) The classification must not be based upon existing circumstances only.... `(4) To whatever class a law may apply, it must apply equally to each member thereof. `(5) That the characteristics of each class should be so far differe

25
State Ex Rel. Strykowski v. Wilkiegreen
wis · 1978 · cited in 4 Wisconsin opinions naming this issue, 1981–2024
2 sentences

2024Strykowski v. Wilkie, 81 Wis. 2d 491, 507 , 261 N.W.2d 434 (1978) (addressing an equal protection challenge to Wisconsin’s health care liability and patient compensation laws and concluding that the strict scrutiny standard does not apply). 9 No. 2023AP1383 the public policy balancing test when, as here, a statutory exception to disclosure applies.

2024Strykowski v. Wilkie, 81 Wis. 2d 491, 507 , 261 N.W.2d 434 (1978) (addressing an equal protection challenge to Wisconsin’s health care liability and patient compensation laws and concluding that the strict scrutiny standard does not apply). 9 No. 2023AP1383 the public policy balancing test when, as here, a statutory exception to disclosure applies.

24
Racine Steel Castings v. Hardygreen
wis · 1988 · cited in 4 Wisconsin opinions naming this issue, 1989–1994
2 sentences

1994See San Antonio School District v. Rodriguez, 411 U.S. 1, 17 (1973); Nordlinger v. Hahn, 112 S.Ct. 2326, 2331 (1992) (the equal protection clause requires that a classification *887 rationally further a legitimate state interest). [5] [4, 5] Further, "`[e]very presumption must be indulged to sustain the law if at all possible and, wherever doubt exists as to a legislative enactment's constitutionality, it must be resolved in favor of constitutionality....'" Racine Steel Castings v. Hardy, 144 Wis. 2d 553, 559 , 426 N.W.2d 33 (1988) (quoting State ex rel.

1994See San Antonio School District v. Rodriguez, 411 U.S. 1, 17 (1973); Nordlinger v. Hahn, 112 S.Ct. 2326, 2331 (1992) (the equal protection clause requires that a classification *887 rationally further a legitimate state interest). [5] [4, 5] Further, "`[e]very presumption must be indulged to sustain the law if at all possible and, wherever doubt exists as to a legislative enactment's constitutionality, it must be resolved in favor of constitutionality....'" Racine Steel Castings v. Hardy, 144 Wis. 2d 553, 559 , 426 N.W.2d 33 (1988) (quoting State ex rel.

24
Czapinski v. St. Francis Hospital, Inc.green
wis · 2000 · cited in 3 Wisconsin opinions naming this issue, 2000–2007
2 sentences

2007We will "uphold a statute under an equal protection analysis [i]f a rational basis exists to support the classification, unless the statute impinges on a fundamental right or creates a classification based on a suspect criterion." Czapinski, 236 Wis. 2d 316, ¶ 27 (alteration in original) (internal quotations omitted).

2007We will "uphold a statute under an equal protection analysis [i]f a rational basis exists to support the classification, unless the statute impinges on a fundamental right or creates a classification based on a suspect criterion." Czapinski, 236 Wis.2d 316, ¶ 27 , 613 N.W.2d 120 (alteration in original) (internal quotations omitted).

23
Maurin v. Hallred
wis · 2004 · cited in 3 Wisconsin opinions naming this issue, 2005–2006
2 sentences

2006See Maurin, 274 Wis. 2d 28, ¶ 214 (Abrahamson, C.J., and Crooks, J., concurring, joined in part by Bradley, J.).

2006See Maurin, 274 Wis.2d 28, ¶ 214 , 682 N.W.2d 866 (Abrahamson, C.J., and Crooks, J., concurring, joined in part by Bradley, J.).

23
Stanley v. Illinoisgreen
scotus · 1972 · cited in 3 Wisconsin opinions naming this issue, 1995–2004
2 sentences

2004Id. at 125 . [7] As we explain below, our decision here is driven by Brendan's lack of a substantial relationship with Selena. [8] In Stanley v. Illinois, 405 U.S. 645 (1972), one of the earlier Supreme Court cases dealing with whether an unmarried biological father has parental rights that rise to a constitutionally protected level, the court held for Stanley, who lived with his children and their mother, because "nothing in this record indicates that Stanley is or has been a neglectful father who has not cared for his children." Id. at 655 . [9] In Caban v. Mohammed, 441 U.S. 380 (1979), whe

2004Id. at 125 . [7] As we explain below, our decision here is driven by Brendan's lack of a substantial relationship with Selena. [8] In Stanley v. Illinois, 405 U.S. 645 (1972), one of the earlier Supreme Court cases dealing with whether an unmarried biological father has parental rights that rise to a constitutionally protected level, the court held for Stanley, who lived with his children and their mother, because "nothing in this record indicates that Stanley is or has been a neglectful father who has not cared for his children." Id. at 655 . [9] In Caban v. Mohammed, 441 U.S. 380 (1979), whe

23
State v. McKenziegreen
wisctapp · 1989 · cited in 3 Wisconsin opinions naming this issue, 1994–2000
2 sentences

2000See State v. McKenzie, 151 Wis. 2d 775, 779 , 446 N.W.2d 77, 78 (Ct. App. 1989) (statute passes constitutional muster against an equal- protection challenge if "a rational basis exists to support the classification, unless the statute impinges on a fundamental right or creates a classification based on a suspect criterion").

2000See State v. McKenzie, 151 Wis. 2d 775, 779 , 446 N.W.2d 77, 78 (Ct. App. 1989) (statute passes constitutional muster against an equal- protection challenge if "a rational basis exists to support the classification, unless the statute impinges on a fundamental right or creates a classification based on a suspect criterion").

23
Dandridge v. Williamsgreen
scotus · 1970 · cited in 3 Wisconsin opinions naming this issue, 1980–1992
23
Pauly v. Keeblergreen
wis · 1921 · cited in 3 Wisconsin opinions naming this issue, 1979–1987
23
Dipendra Tiwari v. Eric Friedlandergreen
ca6 · 2022 · cited in 2 Wisconsin opinions naming this issue, 2024–2024
22
Norman Green, Jr. v. Peter Huibregtsegreen
ca7 · 2013 · cited in 2 Wisconsin opinions naming this issue, 2022–2022
22
Gregory v. Ashcroftgreen
scotus · 1991 · cited in 2 Wisconsin opinions naming this issue, 2021–2021
22
Metropolitan Associates v. City of Milwaukeegreen
wis · 2011 · cited in 2 Wisconsin opinions naming this issue, 2018–2019
22
Hernandez v. New Yorkgreen
scotus · 1991 · cited in 2 Wisconsin opinions naming this issue, 2003–2004
22
Saenz v. Roegreen
scotus · 1999 · cited in 2 Wisconsin opinions naming this issue, 2004–2004
22
State v. Akinsgreen
wis · 1996 · cited in 2 Wisconsin opinions naming this issue, 1997–2000
22
Skinner v. Oklahoma Ex Rel. Williamsongreen
scotus · 1942 · cited in 2 Wisconsin opinions naming this issue, 1995–1995
22
Griswold v. Connecticutgreen
scotus · 1965 · cited in 2 Wisconsin opinions naming this issue, 1995–1995
22
In Interest of Baby Girl K.green
wis · 1983 · cited in 2 Wisconsin opinions naming this issue, 1992–1993
22
State v. Fieldgreen
wis · 1984 · cited in 2 Wisconsin opinions naming this issue, 1990–1990
22
Morey v. Doudred
scotus · 1957 · cited in 2 Wisconsin opinions naming this issue, 1979–1988
22
Yick Wo v. Hopkinsgreen
scotus · 1886 · cited in 2 Wisconsin opinions naming this issue, 1981–1983
22
State Ex Rel. O'Neil v. Town of Halliegreen
wis · 1963 · cited in 2 Wisconsin opinions naming this issue, 1981–1983
22
O'Connell v. Kniskerngreen
wied · 1980 · cited in 2 Wisconsin opinions naming this issue, 1983–1983
22
State v. McManusgreen
wis · 1989 · cited in 7 Wisconsin opinions naming this issue, 1996–2025
2 sentences

2025Equal Protection ¶50 “The equal protection clause requires that the legislature have reasonable and practical grounds for the classifications that it draws.” Quintana, 308 Wis. 2d 615, ¶79 . “[T]he state retains broad discretion to create classifications so long as the classifications have a reasonable basis.” State v. McManus, 152 Wis. 2d 113, 131 , 447 N.W.2d 654 (1989).

2025Equal Protection ¶50 “The equal protection clause requires that the legislature have reasonable and practical grounds for the classifications that it draws.” Quintana, 308 Wis. 2d 615, ¶79 . “[T]he state retains broad discretion to create classifications so long as the classifications have a reasonable basis.” State v. McManus, 152 Wis. 2d 113, 131 , 447 N.W.2d 654 (1989).

17
Funk v. Wollin Silo & Equipment, Inc.green
wis · 1989 · cited in 6 Wisconsin opinions naming this issue, 1990–1996
2 sentences

1996In Funk v. Wollin Silo & Equip., Inc., 148 Wis. 2d 59 , 435 N.W.2d 244 (1989), the supreme court considered an equal protection challenge to § 893.89, STATS., which provided in relevant part that no action for injury resulting from an improvement to real property may be brought "more than 6 years after the substantial completion of construction.

1996In Funk v. Wollin Silo & Equip., Inc., 148 Wis. 2d 59 , 435 N.W.2d 244 (1989), the supreme court considered an equal protection challenge to § 893.89, STATS., which provided in relevant part that no action for injury resulting from an improvement to real property may be brought "more than 6 years after the substantial completion of construction.

16

Distinguished, questioned or overruled (1)

CaseNegativeCited
Swain v. Alabamared
scotus · 1965 · cited in 2 Wisconsin opinions naming this issue, 1982–2021
12

Also cited on this issue (22)

CaseCitedYears
Hillside Transit Co. v. Larson neutral
wis · 1954
2 sentences

1980In Hillside Transit Co. v. Larson (1954), 265 Wis. 658, 583 , 62 N.W.2d 722 , the position of the court was well-summarized by Mr. Justice CURRIE, who stated: “ ‘. . . a legislature has more leeway in granting exemptions in taxation measures than it does in regulatory measures under its police power without running athwart the equal-protection-of-the-laws clause of the Fourteenth amendment.’ “Only if a challenger can show that the classification is arbitrary and has no reasonable purpose or relationship to the facts or a justifiable and proper state policy will a legislative classification fal

1979In Hillside Transit Co. v. Larson (1954), 265 Wis. 568, 583 , 62 N.W.2d 722 , the position of the court was well-summarized by Mr. Justice CUR-RIE, who stated: “ ‘. . .a legislature has much more leeway in granting exemptions in taxation measures than it does in regulatory measures under its police power without running athwart the equal-protection-of-the-laws clause of the Fourteenth amendment.’ (( “Only if a challenger can show that the classification is arbitrary and has no reasonable purpose or relationship to the facts or a justifiable and proper state policy will a legislative classifica

41973–1980
Nankin v. Village of Shorewood green
wis · 2001
2 sentences

2002Smart also contends our supreme court's decision in Nankin v. Village of Shorewood, 2001 WI 92 , 245 Wis. 2d 86 , 630 N.W.2d 141 , and the United States Supreme Court's decision in Bush v. Gore, 531 U.S. 98 (2000), both require us to find an equal protection violation.

2002Smart also contends our supreme court's decision in Nankin v. Village of Shorewood, 2001 WI 92 , 245 Wis. 2d 86 , 630 N.W.2d 141 , and the United States Supreme Court's decision in Bush v. Gore, 531 U.S. 98 (2000), both require us to find an equal protection violation.

32002–2017
Aicher Ex Rel. LaBarge v. Wisconsin Patients Compensation Fund green
wis · 2000
2 sentences

2010Since the equal protection clause guarantees similarly situated individuals similar treatment, id. at 68 , Jeffrey must show that the statute treats similarly situated individuals differently, see Aicher, 237 Wis. 2d 99, ¶ 56 . ¶ 21.

2010Since the equal protection clause guarantees similarly situated individuals similar treatment, id. at 68 , 398 N.W.2d 756 , Jeffrey must show that the statute treats similarly situated individuals differently, see Aicher, 237 Wis.2d 99, ¶ 56 , 613 N.W.2d 849 . ¶ 21 Jeffrey contends that surviving parents are situated similarly to parents from "intact" families because both classes of parents have the same fundamental liberty interest in the care and custody of their children.

32005–2010
Hatami v. New Jersey green
scotus · 1980
2 sentences

1988The supreme court has consistently recognized that "[w]hen a statutory classification is challenged as violative of the equal protection clause, the challenger must prove abuse of legislative discretion beyond a reasonable doubt.” Sambs v. City of Brookfield, 97 Wis. 2d 356, 370 , 293 N.W.2d 504, 511 , cert. denied, 449 U.S. 1035 (1980). 6 See Leary, 383 F.2d at 861 ; United States v. Warren, 595 F. Supp. 595, 600-01 (D.N.D. 1984); Peyote Way Church of God, Inc. v. Smith, 556 F. Supp. 632, 637-40 (N.D.

1982“When a statutory classification is challenged as viola-tive of the equal protection clause, the challenger must prove abuse of legislative discretion beyond a reasonable doubt.” Sambs v. City of Brookfield, 97 Wis. 2d 356, 370 , 293 N.W.2d 504, 511 , cert. denied, 449 U.S. 1035 (1980).

31982–1995
State Ex Rel. La Follette v. Reuter green
wis · 1967
31975–1985
WKBH Television, Inc. v. Department of Revenue green
wis · 1977
31979–1980
In Interest of Angel Lace M. green
wis · 1994
22024–2024
In RE MARRIAGE OF COOK v. Cook green
wis · 1997
22024–2024
State v. Ronald Knipfer green
wis · 2015
22024–2024
State v. Ruesch green
wisctapp · 1997
22000–2023
Cooper v. Harris green
scotus · 2017
22022–2022
Brown v. Board of Education green
scotus · 1954
22020–2020
State v. Joseph E. G. green
wisctapp · 2000
22003–2017
Ferdon Ex Rel. Petrucelli v. Wisconsin Patients Compensation Fund green
wis · 2005
22006–2014
State ex rel. Ford Hopkins Co. v. Mayor of Watertown green
wis · 1937
21994–2011
Byrd v. State green
wis · 1974
21976–2008
Williamson v. Lee Optical of Oklahoma, Inc. green
scotus · 1955
21974–2005
Zobel v. Williams green
scotus · 1982
21989–2005
State Ex Rel. Johnson v. Cady green
wis · 1971
21996–2001
Pierce v. Society of Sisters green
· 1925
21978–1995
State Ex Rel. Jones v. Gerhardstein green
wis · 1987
21994–1995
State Ex Rel. Schopf v. Schubert green
wis · 1970
21980–1984

Statutes the citing opinions construe

WI § Wis. Stat. § 802.08 (20) WI § Wis. Stat. § 808.10 (15) USC § 42u.s.c.1983 (13) WI § Wis. Stat. § 893.55 (13) WI § Wis. Stat. § 893.80 (13) WI § Wis. Stat. § 51.20 (12) WI § Wis. Stat. § 346.63 (10) WI § Wis. Stat. § 948.02 (10) WI § Wis. Stat. § 980.01 (10) WI § Wis. Stat. § 895.43 (9) WI § Wis. Stat. § 940.225 (9) WI § Wis. Stat. § 980.09 (9)

Counted by distinct opinions that both name this issue and are annotated to the section; sections every opinion cites regardless of issue are not filtered here, so read the counts against the total above.

Where else courts name it

CA 1841 (1923–2026) IL 902 (1918–2026) NY 604 (1932–2026) TX 570 (1911–2026) WA 549 (1919–2025) PA 509 (1938–2026) CT 345 (1938–2025) OH 340 (1920–2026) LA 297 (1915–2025) NJ 293 (1907–2026) CO 279 (1932–2026) MI 276 (1912–2026) WI 265 (1929–2026) FL 244 (1927–2025) IA 240 (1930–2025) MO 235 (1924–2025) MA 225 (1927–2026) MN 223 (1916–2026) AL 220 (1901–2025) GA 193 (1935–2026) NC 172 (1911–2026) MD 167 (1934–2024) AZ 165 (1948–2026) AR 164 (1917–2024) KS 162 (1933–2026) IN 158 (1909–2024) OK 150 (1944–2024) TN 135 (1919–2025) MT 126 (1925–2026) AK 125 (1970–2025) ID 115 (1953–2025) NM 114 (1937–2025) MS 110 (1930–2025) KY 104 (1931–2025) VA 99 (1921–2024) SC 98 (1918–2025) OR 95 (1947–2025) NH 94 (1962–2024) RI 90 (1916–2020) WV 89 (1929–2025) NE 85 (1936–2022) ME 85 (1935–2023) NV 83 (1955–2021) WY 65 (1972–2025) UT 64 (1921–2026) ND 61 (1935–2018) DC 57 (1970–2024) HI 56 (1928–2024) SD 49 (1937–2026) VT 48 (1928–2024) DE 45 (1937–2026) VI 16 (1964–2026) PR 5 (1932–1989) MP 3 (1985–2024)

Opinions by the citing court's state. A doctrine retained in one state and abandoned in another shows up here as a year span that stalls.

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