Massachusetts Senate candidate Elizabeth Warren is shown here attending a 2010 Capitol Hill hearing on the Troubled Asset Relief Program.
Alex Wong/Getty Images
May 16, 2012 U.S. Senate candidate Elizabeth Warren's claims of Native American heritage seem uneasy to swallow. But why? What does it take to be considered an ethnic minority, and what does the controversy say about the way we judge ethnic backgrounds?
December 12, 2011 A change in the primary delegate rules may extend the battle for the Republican nomination into the spring. But, if history is a guide, some candidates may not survive the Iowa caucuses.
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