Senators

The table below lists all of our current senators and their record on the filibuster. Click on a name for more details.

Party State Senator Obstruct % Votes
R UT Orrin Hatch 42.7 324/758
R MS Thad Cochran 43.1 321/745
R KY Mitch McConnell 44.2 319/721
R IA Charles Grassley 43.4 314/724
R IN Richard Lugar 39.4 299/758
R AL Richard Shelby 41.9 298/712
R AZ John McCain 40.3 287/712
R AZ Jon Kyl 42.3 235/555
R OK James Inhofe 40.9 227/555
R WY Michael Enzi 44.6 225/505
D NV Harry Reid 31.6 225/712
R AL Jefferson Sessions 43.8 221/505
R TX Kay Hutchison 37.4 220/588
D MI Carl Levin 28.7 214/745
R ID Michael Crapo 45.3 209/461
D MT Max Baucus 27.7 206/745
R SC Jim DeMint 64.8 199/307
D NM Jeff Bingaman 27.4 198/723
D IA Thomas Harkin 27.3 197/721
R KS Pat Roberts 38.8 196/505
D ND Kent Conrad 27.2 194/712
R OK Thomas Coburn 61.9 190/307
D CA Barbara Boxer 30.8 184/597
D VT Patrick Leahy 24.2 184/759
D NJ Frank Lautenberg 27.2 181/665
D WV John Rockefeller 24.8 179/721
D MD Barbara Mikulski 24.9 177/712
D HI Daniel Akaka 26.8 176/656
R TX John Cornyn 48.6 171/352
D HI Daniel Inouye 22.0 170/771
R NV John Ensign 48.7 168/345
R LA David Vitter 54.7 168/307
D WA Patty Murray 27.8 166/597
D WI Herbert Kohl 24.4 163/669
D CA Dianne Feinstein 26.8 160/597
D OR Ron Wyden 30.0 160/533
R GA John Isakson 51.5 158/307
R GA C. Saxby Chambliss 44.9 158/352
R NC Richard Burr 51.5 158/307
D MA John Kerry 21.8 157/721
R SD John Thune 50.8 156/307
R WY John Barrasso 68.9 155/225
R TN Bob Corker 59.5 153/257
R SC Lindsey Graham 42.6 150/352
R TN Lamar Alexander 41.8 147/352
D RI John Reed 29.1 147/505
D IL Richard Durbin 28.1 142/505
I CT Joseph Lieberman 20.8 139/669
R IN Daniel Coats 45.8 126/275
R ME Olympia Snowe 22.2 123/555
R MS Roger Wicker 59.5 119/200
D LA Mary Landrieu 23.4 118/505
R ID James Risch 75.8 116/153
R ME Susan Collins 23.0 116/505
R AK Lisa Murkowski 32.4 114/352
D SD Tim Johnson 21.4 108/505
D NY Charles Schumer 23.0 106/461
R NE Mike Johanns 67.3 103/153
D MI Debbie Stabenow 20.5 84/410
D WA Maria Cantwell 20.5 84/410
D DE Thomas Carper 16.3 67/410
D AR Mark Pryor 18.5 65/352
D FL Bill Nelson 13.7 56/410
R KY Rand Paul 80.6 54/67
D NE E. Benjamin Nelson 12.7 52/410
R UT Mike Lee 71.6 48/67
R WI Ron Johnson 71.6 48/67
R MA Scott Brown 38.3 44/115
R FL Marco Rubio 64.2 43/67
R PA Patrick Toomey 59.7 40/67
R AR John Boozman 56.7 38/67
R OH Rob Portman 55.2 37/67
R NH Kelly Ayotte 53.7 36/67
R MO Roy Blunt 52.2 35/67
R KS Jerry Moran 47.8 32/67
R ND John Hoeven 46.3 31/67
R NV Dean Heller 49.2 31/63
I VT Bernard Sanders 11.7 30/257
D NJ Robert Menendez 10.4 30/288
D MT Jon Tester 10.5 27/257
D MO Claire McCaskill 10.1 26/257
R IL Mark Kirk 27.8 22/79
D VA James Webb 7.8 20/257
D OH Sherrod Brown 6.6 17/257
D MD Benjamin Cardin 6.2 16/257
D RI Sheldon Whitehouse 4.3 11/257
D AK Mark Begich 7.2 11/153
D WV Joe Manchin 13.6 11/81
D PA Robert Casey 4.3 11/257
D MN Amy Klobuchar 4.3 11/257
D OR Jeffery Merkley 6.5 10/153
D NC Kay Hagan 5.9 9/153
D CO Mark Udall 4.6 7/153
D VA Mark Warner 4.6 7/153
D NY Kirsten Gillibrand 3.3 5/150
D CT Richard Blumenthal 6.0 4/67
D NH Jeanne Shaheen 2.6 4/153
D NM Tom Udall 2.6 4/153
D CO Michael Bennet 2 3/150
D MN Al Franken 2.2 3/134
D DE Chris Coons 2.5 2/81
Party State Senator Obstruct % Votes

Data sources and methodology

The data that powers this site comes from a number of sources including: Senate.gov and Govtrack.us. XML files from these sources are pulled in, parsed, and aggregated daily.

My premise is that a vote against a cloture motion is equal to a vote for a filibuster. So basically, the obstruction rate is the number of Nay votes on cloture motions, divided by the total number of cloture votes in the given time period.

Please note, I am currently only considering votes since the beginning of the 101st Congress (1989-present).