Sen. Benjamin Cardin (D-Md.) said Wednesday that the Senate would be in session all night as Democrats try to push financial regulatory reform to the floor over GOP opposition.

“We plan to stay here tonight,” Cardin told reporters hours after Democrats lost a procedural vote to bring up financial reform for the third day in a row.

The stalemate on the floor, Cardin charged, was a “misuse of the filibuster” by Republicans who have stood together in demanding a bipartisan agreement before the legislation can be brought before the Senate. Cardin blasted the GOP strategy and, reiterating the widely voiced Democratic message this week, called for beginning debate on how best to overhaul the rules governing financial institutions.

“The vote is to debate the bill,” Cardin said, suggesting Republicans had ulterior motives with the ongoing talks on regulatory reform.

“They’re trying to weaken the bill without [putting] their fingerprints on amendments,” he said.

Majority Leader Harry Reid (D-Nev.) could move to consider the legislation at any point. Additionally, Reid filed a separate cloture motion on the financial reform bill Tuesday evening, which set up a potential 1 a.m. vote for Thursday morning. Either motion would require 60 votes to pass.