Brown crossed the aisle after Majority Leader Harry ReidHarry ReidReid blocks Thune tech bill over FCC nomination fight McConnell: Senate could drop flood money from spending bill Reid: Trump revealed one 'shocking truth' MORE (D-Nev.) nixed an $85 billion, bipartisan plan in favor of a more narrowly-focused bill.
Democrats needed to poach Brown and and least one other Republican to reach the 60 votes necessary. Centrist Republican Sens. Susan CollinsSusan CollinsSwing-state Republicans play up efforts for gun control laws Reid knocks GOP on gun 'terror loophole' after attacks GOP pressures Kerry on Russia's use of Iranian airbase MORE (Maine) and Olympia Snowe (Maine) also voted for cloture on the proposal.
Reitiring GOP Sens. George Voinovich (Ohio) and Kit Bond (R-Mo.) also voted for cloture.
Brown was elected to the Senate with the backing of conservatives largely because of his pledge to serve as the 41st vote to uphold a filibuster of the Democrats health reform bill.
But Brown has expressed a willingness to work with Democrats on other issues.