Senate Armed Services Committee Chairman Carl Levin, D-Mich., asked for consent to conduct a hearing Wednesday afternoon, but Sen. Richard Burr, R-N.C., objected, The Hill reported.
Republicans also blocked an afternoon meeting of the Homeland Security Committee Contracting Oversight Subcommittee led by Sen. Claire McCaskill, D-Mo.
"What a ridiculous notion that we've got to come beg the minority party so we can have a hearing on the police contracting in Afghanistan," McCaskill said.
Republicans have been picking and choosing which hearings could be conducted, the Washington publication said, such as a Homeland Security Committee hearing on the nomination of Robert Harding to lead the Transportation Security Administration.
The tactic drew sharp criticism from Senate Majority Leader Harry Reid, D-Nev., who called the effort obstructionist as the chamber prepared for a "vote-a-thon" for several dozen GOP-sponsored amendments to the package of fixes to the healthcare law.
The parliamentary procedure, called reconciliation, requires only a simple majority to pass legislation and blocks filibuster attempts.