Most Conservative U.S. Senators of 2024

The top-ranked U.S. Senators by 2024 ILA scorecard score, based on substantive votes tracked by Institute for Legislative Analysis.

See the methodology page for how scores are calculated.

Rank	Lawmaker	Party / State / District	2024 Score
1	Sen. Mike Lee	R-UT	100%
2	Sen. Rand Paul	R-KY	97%
3	Sen. Ron Johnson	R-WI	94%
4	Sen. Tommy Tuberville	R-AL	92%
5	Sen. J.D. Vance	R-OH	91%
6	Sen. Cynthia M. Lummis	R-WY	88%
7	Sen. Jim Banks	R-IN	87%
8	Sen. Roger Marshall	R-KS	87%
9	Sen. Ted Cruz	R-TX	86%
10	Sen. Ted Budd	R-NC	86%
11	Sen. Marsha Blackburn	R-TN	85%
12	Sen. Eric Schmitt	R-MO	84%
13	Sen. Rick Scott	R-FL	83%
14	Sen. John Barrasso	R-WY	82%
15	Sen. Tim Scott	R-SC	80%
16	Sen. Steve Daines	R-MT	80%
17	Sen. Michael D. Crapo	R-ID	79%
18	Sen. Jim Risch	R-ID	78%
19	Sen. Mike Braun	R-IN	77%
20	Sen. Marco Rubio	R-FL	76%
21	Sen. Kevin Cramer	R-ND	73%
22	Sen. John Hoeven	R-ND	73%
23	Sen. Joshua Hawley	R-MO	73%
24	Sen. Bill Hagerty	R-TN	71%
25	Sen. Charles E. Grassley	R-IA	70%
26	Sen. John Kennedy	R-LA	70%
27	Sen. John Thune	R-SD	68%
28	Sen. Joni Ernst	R-IA	68%
29	Sen. Katie Boyd Britt	R-AL	68%
30	Sen. James Lankford	R-OK	66%
31	Sen. Mitt Romney	R-UT	64%
32	Sen. Peter Ricketts	R-NE	63%
33	Sen. John Cornyn	R-TX	61%
34	Sen. Bill Cassidy	R-LA	61%
35	Sen. Deb Fischer	R-NE	60%
36	Sen. Thom Tillis	R-NC	58%
37	Sen. Tom Cotton	R-AR	58%
38	Sen. Markwayne Mullin	R-OK	56%
39	Sen. Dan Sullivan	R-AK	56%
40	Sen. Lindsey Graham	R-SC	55%
41	Sen. Cindy Hyde-Smith	R-MS	55%
42	Sen. Todd Young	R-IN	54%
43	Sen. Jerry Moran	R-KS	52%
44	Sen. John Boozman	R-AR	52%
45	Sen. Shelley Moore Capito	R-WV	52%
46	Sen. Roger Wicker	R-MS	51%
47	Sen. Mitch McConnell	R-KY	50%
48	Sen. Mike Rounds	R-SD	49%
49	Sen. Joe Manchin III	I-WV	40%
50	Sen. Susan Collins	R-ME	38%