Orrin Hatch (R-UT) has participated in 324 filibusters. 42.7% obstruction!*
Thad Cochran (R-MS) has participated in 321 filibusters. 43.1% obstruction!*
Mitch McConnell (R-KY) has participated in 319 filibusters. 44.2% obstruction!*
Charles Grassley (R-IA) has participated in 314 filibusters. 43.4% obstruction!*
Richard Lugar (R-IN) has participated in 299 filibusters. 39.4% obstruction!*
Richard Shelby (R-AL) has participated in 298 filibusters. 41.9% obstruction!*
John McCain (R-AZ) has participated in 287 filibusters. 40.3% obstruction!*
Jon Kyl (R-AZ) has participated in 235 filibusters. 42.3% obstruction!*
James Inhofe (R-OK) has participated in 227 filibusters. 40.9% obstruction!*
Michael Enzi (R-WY) has participated in 225 filibusters. 44.6% obstruction!*
Harry Reid (D-NV) has participated in 225 filibusters. 31.6% obstruction!*
Jefferson Sessions (R-AL) has participated in 221 filibusters. 43.8% obstruction!*
Kay Hutchison (R-TX) has participated in 220 filibusters. 37.4% obstruction!*
Carl Levin (D-MI) has participated in 214 filibusters. 28.7% obstruction!*
Michael Crapo (R-ID) has participated in 209 filibusters. 45.3% obstruction!*
Max Baucus (D-MT) has participated in 206 filibusters. 27.7% obstruction!*
Party: D
State: IA
Obstruction rate: 27.3% (197/721)
Senator Thomas Harkin, D from IA, has voted in favor of a filibuster 197 out of a total of 721 opportunities. This amounts to an obstruction record of 27.3%.
