Crossing the aisle
Senate Democrats who side with Republicans most often
- John Fetterman (D-PA): 163 of 792 split votes
- Jeanne Shaheen (D-NH): 117 of 806 split votes
- Angus S. King, Jr. (I-ME): 108 of 829 split votes
- Margaret Wood Hassan (D-NH): 105 of 833 split votes
- Jacky Rosen (D-NV): 87 of 828 split votes
- Tim Kaine (D-VA): 82 of 833 split votes
- Mark R. Warner (D-VA): 79 of 809 split votes
- Mark Kelly (D-AZ): 68 of 793 split votes
- Catherine Cortez Masto (D-NV): 70 of 826 split votes
- Ruben Gallego (D-AZ): 62 of 744 split votes
- Elissa Slotkin (D-MI): 64 of 824 split votes
- Richard J. Durbin (D-IL): 53 of 818 split votes
- Martin Heinrich (D-NM): 51 of 812 split votes
- Christopher A. Coons (D-DE): 49 of 795 split votes
- Amy Klobuchar (D-MN): 50 of 829 split votes
House Democrats who side with Republicans most often
- Henry Cuellar (D-TX-28): 165 of 472 split votes
- Donald G. Davis (D-NC-1): 142 of 469 split votes
- Jared F. Golden (D-ME-2): 137 of 465 split votes
- Marie Gluesenkamp Perez (D-WA-3): 139 of 472 split votes
- Vicente Gonzalez (D-TX-34): 126 of 461 split votes
- Adam Gray (D-CA-13): 110 of 456 split votes
- Laura Gillen (D-NY-4): 74 of 464 split votes
- Thomas R. Suozzi (D-NY-3): 72 of 470 split votes
- Jim Costa (D-CA-21): 64 of 464 split votes
- Josh Gottheimer (D-NJ-5): 56 of 431 split votes
- Susie Lee (D-NV-3): 59 of 468 split votes
- Eugene Simon Vindman (D-VA-7): 57 of 475 split votes
- Jared Moskowitz (D-FL-23): 53 of 461 split votes
- Josh Riley (D-NY-19): 53 of 471 split votes
- Kristen McDonald Rivet (D-MI-8): 52 of 463 split votes
Senate Republicans who side with Democrats most often
- Susan M. Collins (R-ME): 140 of 846 split votes
- Lisa Murkowski (R-AK): 118 of 810 split votes
- Rand Paul (R-KY): 94 of 804 split votes
- Josh Hawley (R-MO): 35 of 811 split votes
- Dan Sullivan (R-AK): 32 of 821 split votes
- Thom Tillis (R-NC): 26 of 739 split votes
- Mitch McConnell (R-KY): 25 of 729 split votes
- John Thune (R-SD): 19 of 845 split votes
- Bill Cassidy (R-LA): 17 of 803 split votes
- Darline Graham (R-SC): 1 of 51 split votes
- Jerry Moran (R-KS): 12 of 795 split votes
- Mike Rounds (R-SD): 10 of 838 split votes
- Roger F. Wicker (R-MS): 8 of 818 split votes
- John Boozman (R-AR): 7 of 833 split votes
- Jon Husted (R-OH): 7 of 841 split votes
House Republicans who side with Democrats most often
- James C. Moylan (R-GU-AL): 26 of 51 split votes
- Brian K. Fitzpatrick (R-PA-1): 109 of 471 split votes
- Thomas Massie (R-KY-4): 71 of 452 split votes
- Michael Lawler (R-NY-17): 53 of 468 split votes
- James Gallagher (R-CA-1): 6 of 64 split votes
- Don Bacon (R-NE-2): 44 of 475 split votes
- Kevin Kiley (I-CA-3): 41 of 472 split votes
- Robert P. Bresnahan, Jr. (R-PA-8): 38 of 475 split votes
- Nick LaLota (R-NY-1): 37 of 470 split votes
- David P. Joyce (R-OH-14): 36 of 465 split votes
- Thomas H. Kean, Jr. (R-NJ-7): 28 of 377 split votes
- Andrew R. Garbarino (R-NY-2): 34 of 464 split votes
- Michael R. Turner (R-OH-10): 33 of 466 split votes
- Ryan Mackenzie (R-PA-7): 32 of 470 split votes
- Nicole Malliotakis (R-NY-11): 31 of 471 split votes