With the exception of several floor speeches in honor of fallen Rep. Gabbie Giffords (R-Ariz.) from Sens. Durbin, Kyl, McCain, and McCaskill, the Senate floor has remained quiet.

A roll call vote on the resolution is expected at 2.30 p.m.

Meanwhile, senatorial aides say Senate leadership is in the final phases of hashing out a deal that will determine Senate rules for the remainder of the 112th Congress.