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Statistics

Overview

Below are statistics for the Lifetime Senate Scores (103rd-113th Congresses). Read the related blog "Bipartisan Index Scores Show Growth of Partisan Culture in Senate."

Ten Highest Bipartisan Index Scores for a Single Congress:
  1. Gordon Smith 110th 2.718033
  2. Olympia Snowe 111th  2.637516
  3. Lincoln Chafee  109th 2.60232
  4. Susan Collins 108th 2.352347
  5. Lincoln Chafee 107th 2.160978
  6. Gordon Smith 109th 2.122527
  7. Lincoln Chafee 108th 2.120901
  8. Susan Collins 113th  2.116206
  9. Richard Lugar  111th 2.102551
  10. Olympia Snowe 112th 2.081488
Ten Lowest Bipartisan Scores for a Single Congress:
  1. Jim DeMint  112th  -2.09564
  2. Jim DeMint 110th  -2.03566
  3. Dan Coats 112th  -2.00828
  4. Ron Johnson 112th -2.00491
  5. Rand Paul  112th  -1.90618
  6. Paul Coverdell  104th  -1.86891
  7. Jim DeMint  111th  -1.84915
  8. Mike Lee  112th  -1.81647
  9. Tim Scott  113th  -1.7426
  10. Bernie Sanders  112th  -1.71773
Party Distribution of Top 25 Lifetime Senate Scores:
  • 14 Republicans
  • 10 Democrats
  • 1 Party Switcher
Party Distribution of Top 50 Lifetime Senate Scores:
  • 24 Republicans
  • 23 Democrats
  • 3 Party Switchers
Party Distribution of Top 100 Lifetime Senate Scores:
  • 49 Democrats
  • 48 Republicans
  • 3 Party Switchers
Party Distribution of Bottom 25 Lifetime Senate Scores:
  • 15 Republicans
  • 10 Democrats
Party Distribution of Bottom 50 Lifetime Senate Scores:
  • 27 Republicans
  • 23 Democrats
Party Distribution of Bottom 100 Lifetime Senate Scores:
  • 51 Democrats
  • 48 Republicans
  • 1 Party Switcher
Most Congresses with a Bipartisan Index Score in the Senate Top 10:
  • 6 – Susan Collins
  • 6 – Chuck Grassley
  • 6 – Olympia Snowe
  • 5 – Kent Conrad
  • 4 – Lincoln Chafee
  • 4 – Jim Jeffords
  • 3 – John Breaux
  • 3 – John Chafee
  • 3 – Thad Cochran
  • 3 – Pete Domenici
  • 3 – Joe Lieberman
  • 3 – Richard Lugar
  • 3 – Lisa Murkowski
  • 3 – Gordon Smith
Distribution of Senate Lifetime Scores for Those Serving in the 114th Congress:
  • 56 below 0.00
  • 31 above 0.00
  • 13 new senators without a Lifetime Score
Highest Lifetime Scores Among Senators Serving at Least 5 Congresses since 1993:
  1. Susan Collins   1.57281
  2. Olympia Snowe  1.462383
  3. Gordon Smith  1.350191
  4. Chuck Grassley  1.045719
  5. Jim Jeffords  0.941211
Lowest Scores Among Senators Serving at Least 5 Congresses since 1993:
  1. Dan Coats   -1.06718
  2. Bob Menendez   -0.95095
  3. Frank Lautenberg   -0.82345
  4. Jon Kyl   -0.76655
  5. David Vitter   -0.71977
Highest Scores Among Senators Serving at Least 10 Congresses since 1993:
  1. Chuck Grassley   1.045719
  2. Kent Conrad   0.687046
  3. Richard Lugar   0.667979
  4. Joe Lieberman   0.662165
  5. Max Baucus   0.619391
Lowest Scores Among Senators Serving at Least 10 Congresses since 1993: 
  1. Jim Inhofe   -0.65883
  2. Barbara Boxer   -0.60727
  3. Richard Shelby   -0.49706
  4. Patty Murray   -0.38386
  5. Dan Inouye   -0.20799
States with All Lifetime Senate Scores Above 0.00:
  • Maine
  • Nevada
  • North Dakota
  • Virginia
States with All Lifetime Senate Scores below 0.00:
  • California
  • Hawaii
  • Idaho
  • Michigan
  • New Jersey
  • Wyoming
State with “Highest Lowest” Senate Lifetime Score:
  • Maine - Bill Cohen 0.326475 (all other states had at least one Senator with a lower lifetime score than any Senator from Maine)
State with the “Lowest Highest” Senate Lifetime Score:
  • Wyoming - Mike Enzi -0.14112 (All other states had at least one Senator with a higher lifetime score than any Senator from Wyoming)
States with 2 Senators in the Top 25 of Lifetime Scores:
  • Georgia
  • Illinois
  • Indiana
  • Maine
  • Minnesota
  • Oregon
  • Rhode Island
States with 2 Senators in the Bottom 25 of Lifetime Scores:
  • South Carolina
  • Wyoming
States with 3 Senators in the Top 50 of Lifetime Scores:
  • Georgia
  • Maine
  • Nebraska
States with at Least 3 Senators in the Bottom 50 of Lifetime Scores:
  • New Jersey (4)
  • Texas (3)