Denver (CNN) -- While an increasingly unpopular President Obama seems to be on a self-imposed Rose Garden strategy this election, one Democrat is in demand on the campaign trail: Sen. Elizabeth Warren. She's an unabashed progressive from Massachusetts, a Democrat who thinks Democrats are too timid and a populist who has been called to help in red, blue and purple states. And despite her frequent protests, she's someone that liberals long to see launch a 2016 bid for the White House. Warren is an unusual Washington phenom—a combination of loyal soldier and inside agitator, a star who has no problem taking on her own party.
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Elizabeth Warren is pushing fellow Democrats to fight more
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Warren to CNN: "We can use a little more of standing up"
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Warren will campaign this weekend in New Hampshire
But she's not shy about taking on the @placeholder, calling its bailout more of a sell-out.