The Senate Rules Committee is holding a hearing tomorrow to discuss the history of the filibuster, as Democrats consider their options for limiting GOP abuse of stalling tactics.
People For’s Marge Baker just released a memo on some of the GOP’s most egregious abuses of filibuster threats in the current Congress. She writes :
Although the bulk of the news coverage on nominations has focused on a few nominees singled out for very public attacks by the GOP and right-wing activists, it’s the lower profile nominations that most clearly illustrate the Republicans’ “Party of ‘No’” strategy. In dealing with those nominees, the GOP has undertaken a relentless and irresponsible campaign of obstruction that has frustrated the timely confirmation of the President’s nominees and diverted critical time, energy, and focus from other, equally critical business of the Senate.
The cases that Baker outlines—like that of Circuit Court Judge Barbara Keenan, who waited 124 days for a Senate floor vote on her nomination, only to find that no Republican Senator actually objected to her taking a place on the court—are frustrating examples of purely political obstruction. There’s not a consensus  on what to do about the filibuster, but it’s clear that the extent to which the GOP has been using it just to stall the business of government is stunning.