Control of U.S. Senate Up For Grabs in 2012

With more Democrats retiring, Republicans could wrest control of both houses in 2012.

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Duffy says control of the body is likely going to come down to a handful of toss-up seats, including the already closely watched Massachusetts contest, which pits Republican Sen. Scott Brown against Harvard Professor and former Obama Administration official Elizabeth Warren, a Democrat.

"(It's) going to be just epic," Duffy says. "In terms of money spent and attention paid is going to be pretty remarkable."

  • See the GOP's top Senate targets of 2012.
  • Read GOP rivals go into attack mode.
  • Check out photos of the 2012 GOP candidates.
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    Corrected on 12/13/2011: An earlier version of this article omitted the words "cash on hand" in a sentence; this version has been corrected.