Sen. Dick DurbinRichard (Dick) Joseph DurbinSenate Dems hold floor talk-a-thon against latest ObamaCare repeal bill Overnight Defense: Senate passes 0B defense bill | 3,000 US troops heading to Afghanistan | Two more Navy officials fired over ship collisions Senate passes 0B defense bill MORE (D-Ill.) filed a motion to end debate on Brennan's nomination early Thursday morning. Soon after the Senate resumes at 10 a.m., senators will be able to debate Brennan's nomination.

But the filing of the cloture motion on Thursday means the Senate might have to vote on that motion Saturday, unless both parties agree to an earlier vote. Despite Paul's filibuster, Democrats are hoping some agreement can be reached with Republicans to vote today.

The House will meet for a brief pro forma session, but has no plans to work today. The House approved a 2013 spending bill Wednesday and left for the week because of yesterday's snowstorm.