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Ranking · All of Congress · Updated Sep 30, 2026

Members of Congress who break with their party most

As of Sep 30, 2026, Rep. Henry Cuellar (D-TX-28) has the highest figure in Congress: 35.3% of party-line votes cast against their own party. Next are Rep. Donald G. Davis (D-NC-1) at 30.5% and Rep. Marie Gluesenkamp Perez (D-WA-3) at 29.9%. 530 members are ranked; the typical (median) member is at 1.7%.

Members ranked
530
Highest
35.3%
Median
1.7%

Top 100

  1. 1. Henry Cuellar D-TX-28 · House35.3%
  2. 2. Donald G. Davis D-NC-1 · House30.5%
  3. 3. Marie Gluesenkamp Perez D-WA-3 · House29.9%
  4. 4. Jared F. Golden D-ME-2 · House29.7%
  5. 5. Vicente Gonzalez D-TX-34 · House27.5%
  6. 6. Adam Gray D-CA-13 · House24.3%
  7. 7. Brian K. Fitzpatrick R-PA-1 · House22.9%
  8. 8. John Fetterman D-PA · Senate20.5%
  9. 9. Susan M. Collins R-ME · Senate16.7%
  10. 10. Laura Gillen D-NY-4 · House16.0%
  11. 11. Thomas Massie R-KY-4 · House15.6%
  12. 12. Thomas R. Suozzi D-NY-3 · House15.4%
  13. 13. Lisa Murkowski R-AK · Senate14.7%
  14. 14. Jeanne Shaheen D-NH · Senate14.4%
  15. 15. Jim Costa D-CA-21 · House13.9%
  16. 16. Josh Gottheimer D-NJ-5 · House13.1%
  17. 17. Angus S. King, Jr. I-ME · Senate12.8%
  18. 18. Margaret Wood Hassan D-NH · Senate12.7%
  19. 19. Susie Lee D-NV-3 · House12.7%
  20. 20. Eugene Simon Vindman D-VA-7 · House12.1%
  21. 21. Rand Paul R-KY · Senate11.8%
  22. 22. Jared Moskowitz D-FL-23 · House11.6%
  23. 23. Josh Riley D-NY-19 · House11.4%
  24. 24. Kristen McDonald Rivet D-MI-8 · House11.3%
  25. 25. Gabe Vasquez D-NM-2 · House11.3%
  26. 26. Michael Lawler R-NY-17 · House11.0%
  27. 27. Marcy Kaptur D-OH-9 · House10.9%
  28. 28. Greg Landsman D-OH-1 · House10.7%
  29. 29. Chris Pappas D-NH-1 · House10.5%
  30. 30. Jacky Rosen D-NV · Senate10.4%
  31. 31. Tim Kaine D-VA · Senate9.9%
  32. 32. Mark R. Warner D-VA · Senate9.7%
  33. 33. Jimmy Panetta D-CA-19 · House9.5%
  34. 34. Don Bacon R-NE-2 · House9.1%
  35. 35. Maggie Goodlander D-NH-2 · House9.0%
  36. 36. George Whitesides D-CA-27 · House8.9%
  37. 37. Hillary J. Scholten D-MI-3 · House8.7%
  38. 38. Mark Kelly D-AZ · Senate8.6%
  39. 39. Derek Tran D-CA-45 · House8.5%
  40. 40. Darren Soto D-FL-9 · House8.5%
  41. 41. Catherine Cortez Masto D-NV · Senate8.4%
  42. 42. Kevin Kiley I-CA-3 · House8.3%
  43. 43. Frank J. Mrvan D-IN-1 · House8.2%
  44. 44. Kim Schrier D-WA-8 · House8.2%
  45. 45. Ruben Gallego D-AZ · Senate8.1%
  46. 46. Eric Sorensen D-IL-17 · House8.1%
  47. 47. Steven Horsford D-NV-4 · House8.0%
  48. 48. Josh Harder D-CA-9 · House7.9%
  49. 49. Sharice Davids D-KS-3 · House7.7%
  50. 50. Robert P. Bresnahan, Jr. R-PA-8 · House7.6%
  51. 51. David P. Joyce R-OH-14 · House7.6%
  52. 52. Elissa Slotkin D-MI · Senate7.6%
  53. 53. Nick LaLota R-NY-1 · House7.5%
  54. 54. Andrew R. Garbarino R-NY-2 · House7.4%
  55. 55. J. Luis Correa D-CA-46 · House7.4%
  56. 56. Marc A. Veasey D-TX-33 · House7.3%
  57. 57. Patrick Ryan D-NY-18 · House7.2%
  58. 58. Michael R. Turner R-OH-10 · House7.1%
  59. 59. Sanford D. Bishop, Jr. D-GA-2 · House7.1%
  60. 60. John W. Mannion D-NY-22 · House7.0%
  61. 61. Thomas H. Kean, Jr. R-NJ-7 · House7.0%
  62. 62. James Gallagher R-CA-1 · House6.9%
  63. 63. Greg Stanton D-AZ-4 · House6.7%
  64. 64. Chrissy Houlahan D-PA-6 · House6.5%
  65. 65. Richard J. Durbin D-IL · Senate6.5%
  66. 66. David G. Valadao R-CA-22 · House6.5%
  67. 67. Ryan Mackenzie R-PA-7 · House6.4%
  68. 68. Nikki Budzinski D-IL-13 · House6.3%
  69. 69. Nicole Malliotakis R-NY-11 · House6.2%
  70. 70. Martin Heinrich D-NM · Senate6.1%
  71. 71. Scott H. Peters D-CA-50 · House6.0%
  72. 72. Christopher A. Coons D-DE · Senate5.9%
  73. 73. Shomari Figures D-AL-2 · House5.8%
  74. 74. Amy Klobuchar D-MN · Senate5.8%
  75. 75. Jack Reed D-RI · Senate5.4%
  76. 76. Dave Min D-CA-47 · House5.3%
  77. 77. Gary C. Peters D-MI · Senate5.2%
  78. 78. Zachary Nunn R-IA-3 · House5.2%
  79. 79. Bradley Scott Schneider D-IL-10 · House5.2%
  80. 80. James A. Himes D-CT-4 · House5.1%
  81. 81. John W. Hickenlooper D-CO · Senate5.1%
  82. 82. Raphael G. Warnock D-GA · Senate5.0%
  83. 83. Angie Craig D-MN-2 · House5.0%
  84. 84. Sheldon Whitehouse D-RI · Senate4.9%
  85. 85. Terri A. Sewell D-AL-7 · House4.9%
  86. 86. Janelle S. Bynum D-OR-5 · House4.9%
  87. 87. Jefferson Van Drew R-NJ-2 · House4.9%
  88. 88. Jennifer A. Kiggans R-VA-2 · House4.9%
  89. 89. Jake Auchincloss D-MA-4 · House4.8%
  90. 90. Seth Magaziner D-RI-2 · House4.7%
  91. 91. Michael K. Simpson R-ID-2 · House4.7%
  92. 92. Ed Case D-HI-1 · House4.7%
  93. 93. Christopher H. Smith R-NJ-4 · House4.7%
  94. 94. Haley M. Stevens D-MI-11 · House4.7%
  95. 95. Emilia Strong Sykes D-OH-13 · House4.6%
  96. 96. Julie Johnson D-TX-32 · House4.6%
  97. 97. April McClain Delaney D-MD-6 · House4.5%
  98. 98. Carlos A. Gimenez R-FL-28 · House4.5%
  99. 99. Adam B. Schiff D-CA · Senate4.5%
  100. 100. Dan Newhouse R-WA-4 · House4.5%

By party

Democrats: 257 ranked, median 1.9%. Republicans: 270 ranked, median 1.5%.

How we count

On votes where most Democrats and most Republicans took opposite sides, the share of the time a member voted with the other party. Only members with at least 50 such votes are ranked.

Source: Voteview roll call records. Every member’s figure links to their profile, which links to the original filings. Data as of Sep 30, 2026, updated daily.

Other rankings

Capitol Receipts is nonpartisan. Every member is measured the same way, from public records.