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Below are statistics for the Lifetime Senate Scores (103rd-114th Congresses). Read the related press release "The Lugar Center and Georgetown University's McCourt School Unveil New Bipartisan Index Rankings of All U.S. Senators."

Ten Highest Bipartisan Index Scores for a Single Congress:

1. Gordon Smith 110^th  2.718033
2. Olympia Snowe 111^th  2.637516
3. Lincoln Chafee  109^th  2.60232
4. Susan Collins 114^th  2.54734
5. Susan Collins 108^th  2.352347
6. Lincoln Chafee 107^th  2.160978
7. Gordon Smith 109^th  2.122527
8. Lincoln Chafee 108^th  2.120901
9. Susan Collins 113^th  2.116206
10. Richard Lugar 111^th  2.102551

Ten Lowest Bipartisan Scores for a Single Congress:

1. Jim DeMint  112^th -2.09564
2. Jim DeMint 110^th -2.03566
3. Bernie Sanders 114^th -2.01024
4. Dan Coats 112^th -2.00828
5. Ron Johnson 112^th -2.00491
6. Rand Paul  112^th -1.90618
7. Paul Coverdell  104^th -1.86891
8. Jim DeMint  111^th -1.84915
9. Mike Lee  112^th -1.81647
10. Tim Scott  113^th -1.7426

Party Distribution of Top 25 Lifetime Senate Scores:

• 15 Republicans
• 9 Democrats
• 1 Party Switcher

Party Distribution of Top 50 Lifetime Senate Scores:

• 27 Republicans
• 21 Democrats
• 2 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:

• 17 Republicans
• 8 Democrats

Party Distribution of Bottom 50 Lifetime Senate Scores:

• 29 Republicans
• 21 Democrats

Party Distribution of Bottom 100 Lifetime Senate Scores:

• 51 Democrats
• 49 Republicans

Most Congresses with a Bipartisan Index Score in the Senate Top 10:

• 7 – Susan Collins
• 7 – 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 – Mark Kirk
• 3 – Richard Lugar
• 3 – Joe Manchin
• 3 – Lisa Murkowski
• 3 – Gordon Smith

Distribution of Senate Lifetime Scores for Those Serving in the 115^th Congress:

• 56 below 0.00
• 36 above 0.00
• 8 new senators without a Lifetime Score

Highest Lifetime Scores Among Senators Serving at Least 5 Congresses since 1993:

1. Susan Collins   1.67026
2. Olympia Snowe  1.46238
3. Gordon Smith  1.35019
4. Chuck Grassley  1.06305
5. Jim Jeffords  0.94121

Lowest Scores Among Senators Serving at Least 5 Congresses since 1993:

1. Jesse Helms   -1.03719
2. Dan Coats -1.02796
3. Bob Menendez   -0.9241
4. Phil Gramm -0.89625
5. John Barrasso   -0.8592

Highest Scores Among Senators Serving at Least 10 Congresses since 1993:

1. Susan Collins   1.670263
2. Chuck Grassley   1.045719
3. Kent Conrad   0.687046
4. Richard Lugar   0.667979
5. Joe Lieberman   0.662165

Lowest Scores Among Senators Serving at Least 10 Congresses since 1993:

1. Barbara Boxer   -0.66381
2. Jim Inhofe   -0.63906
3. Richard Shelby   -0.56566
4. Patty Murray   -0.42266
5. Dick Durbin   -0.24125

States with All Lifetime Senate Scores Above 0.00:

• Maine
• Nevada
• North Dakota

States with All Lifetime Senate Scores below 0.00:

• California
• Hawaii
• New Jersey
• Wyoming

State with “Highest Lowest” Senate Lifetime Score:

• North Dakota - Byron Dorgan 0.34991 (all other states had at least one Senator with a lower lifetime score than any Senator from North Dakota)

State with the “Lowest Highest” Senate Lifetime Score:

• Hawaii - Daniel Akaka -0.19249 (All other states had at least one Senator with a higher lifetime score than any Senator from Hawaii)

States with 2 Senators in the Top 25 of Lifetime Scores:

• Georgia
• Illinois
• Maine
• Minnesota
• Oregon
• Rhode Island
• West Virginia

States with 2 Senators in the Bottom 25 of Lifetime Scores:

• Georgia
• South Carolina
• Texas
• Wyoming

States with 3 Senators in the Top 50 of Lifetime Scores:

• Georgia
• Maine
• North Dakota
• Ohio
• Oregon

States with at Least 3 Senators in the Bottom 50 of Lifetime Scores:

• New Jersey (4)
• Oklahoma (3)

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