Why Senate Democrats Had To Invoke The ‘Nuclear Option’
by Michael Collier on Nov 21, 2013 | Views: 272 | Score: 2
| # of Cloture Motions Filed | |
| 112th | 115 |
| 111th | 137 |
| 110th | 139 |
| 109th | 68 |
| 108th | 62 |
| 107th | 71 |
| 106th | 71 |
| 105th | 69 |
| 104th | 82 |
| 103rd | 80 |
| 102nd | 60 |
| 101st | 38 |
| 100th | 54 |
| 99th | 41 |
| 98th | 41 |
| 97th | 31 |
| 96th | 30 |
| 95th | 23 |
Sources:
, thinkprogress.org, senate.gov

A common mechanism used to gauge the frequency of filibusters is the number of “cloture motions” filed during a particular Congress. "Cloture” is the procedure used to break a filibuster. While filibusters were not unheard of before Democrats gained their majority and Sen. Mitch McConnell became the Republican leader, they spiked the minute McConnell assumed his position (110th Congress)