The "Batting Average of the ACLU in the US Supreme Court" examines the ACLU's win/loss record in all 752 US Supreme Court cases in which it was involved in from 1925 to 1999. The cases are examined by decade, by subject matter, and by margin of victory/loss. To read the individual case summaries visit ACLU in the Supreme Court.
Personal statement from ProCon.org's Chairman Steven C. Markoff about the batting average project.
This work was confined to cases decided by the US Supreme Court from the formation of the ACLU on Jan. 19, 1920 through Dec. 31, 1999.
Choosing the Cases
The cases chosen were where the ACLU was shown by US Supreme Court documents or records to be:
a party, or
the attorney of record, or
the filer of an amicus brief
This criteria excluded many cases where the ACLU was involved indirectly or informally, including notable ones, such as Roe v. Wade, Powell v. Alabama and Loving v. Virginia.
Win/Loss Definition
This work has simply defined "winning" or "losing" by whether or not the ruling of the US Supreme Court was "with" or "against" the side the ACLU was on, even though there are instances where the ACLU was on the "winning side" but felt they lost and, conversely, where they were on the "losing side" but may have received a benefit from the decision.
It is established that in the cases of ties, where the US Supreme Court ruling has an equally divided 4-4 vote, the equally divided decision reaffirms the ruling below because petitioner/appellant needs 5 votes to overturn a judgment. In that case, we count the decision as an ACLU "win" or "loss" depending on whether the ACLU position was seeking affirmance or reversal of the judgment.
When the US Supreme Court's ruling goes part in favor and part against the ACLU position, we count "winning" or "losing" according to whether the Court's line of reasoning in its argument was "with" or "against" the ACLU position.
In per curiam decisions, the US Supreme Court often issued decisions without making public the individual Justices' voting record. In some such cases, we have categorized these decisions as unanimous "wins" or "losses" - unless an individual Justice had issued an opinion indicating their own position and adjusted the unanimous vote accordingly (i.e., if it is a concurring opinion, the vote remains unanimous; however, in the case of dissenting opinions, the unanimity of the vote fails).
4. 752 US Supreme Court Cases
Click here to view our presentation of the 752 Supreme Court cases.
5. Voting Record of the ACLU in the US Supreme Court by Decade
DECADE
WINS
TIES
LOSSES
RECAP
5-4
6-3
5-3
4-3
7-2
6-2
5-2
8-1
7-1
6-1
9-0
8-0
7-0
6-0
Total
Wins
4-4
3-3
Total
Losses
0-9
0-8
0-7
1-8
1-7
1-6
2-7
2-6
2-5
2-4
3-6
3-5
3-4
4-5
Total
Cases
ACLU
Win%
1920s
0
0
0
0
0
0
0
1
0
0
1
0
0
1
0.00%
1930s
1
0
3
1
2
7
0
0
0
0
0
0
0
7
100.00%
1940s
6
6
5
4
12
33
0
14
6
3
0
3
2
47
70.47%
1950s
3
5
3
5
12
28
1
13
1
1
1
4
5
41
68.29%
1960s
14
12
9
14
22
71
0
28
2
3
3
8
12
99
71.72%
1970s
15
10
18
12
21
76
1
72
7
8
12
27
17
148
51.35%
1980s
24
19
11
13
52
120
1
118
22
8
11
36
41
238
50.42%
1990s
18
11
10
5
45
89
0
82
21
8
14
17
22
171
52.05%
Totals/
Average
81
63
59
54
166
424
3
328
59
31
42
95
99
752
56.38%
Percent
10.77%
8.38%
7.85%
7.18%
22.07%
56.38%
0.40%
43.61%
7.85%
4.12%
5.59%
12.63%
13.16%
100.00%
6. Case Categories Defined
The 752 cases included in the project have been divided into four main categories: 1st Amendment, Criminal Justice, Civil Rights, and Governmental Authority. These categories are subdivided as follows: