President Barack Obama tapped Warren to set up the new Consumer Protection Finance Bureau, but Republicans blocked efforts to make her its first director.
Warren turned to a Senate bid. She beat GOP Sen. Scott Brown last fall in one of the most expensive and hard-fought Senate contests of 2012. Before taking office, she signaled that her brash style as a consumer advocate might yield to a different approach.
"Sometimes it will mean working quietly in the shadows, and other times it will be speaking up forcefully," she said. "I'm willing to do either. I just want to find the way to get things done."
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