In 2010, Republican Scott Brown vowed to be the "41st" vote against President Barack Obama's sweeping health care overhaul.
Two years later, the Massachusetts senator still opposes what he calls "Obamacare" but has found a lot more to love about the Democratic president.
While many Republican lawmakers are using Obama as a campaign foil, Brown is touting his bipartisanship as he hopes to fend off a challenge from chief Democratic rival Elizabeth Warren.
Brown has backed key Democratic initiatives and praised Obama's decision to bypass the Senate and appoint Richard Cordray to lead the Consumer Financial Protection Bureau.
Brown also had a friendly exchange with Obama after the State of the Union speech during which Obama urged lawmakers to pass a Brown-sponsored bill banning insider trading by members of Congress.
