Bill Clinton and George W. Bush pursued financial de-regulation, Barack Obama bailed out Wall Street in 2008, and 2010 brought in a much more bank-friendly Congress. But 2012?

Well, so far, Elizabeth Warren , the Harvard academic and financial regulator, is projected to be elected to the Senate from Massachusetts. That august body filibustered her appointment to run the Consumer Financial Protection Agency, the newly-created bank watchdog that she essentially invented, so now she's now joining the old boys club. Expect her to be a major voice on financial rules, whether or not she ends up on the Senate Banking Committee. And though she worked briefly for President Obama, she's an equal opportunity populist: As the chair of the committee that oversaw the TARP bailouts, she had plenty of harsh words for Secretary of the Treasury Tim Geithner.