Recent polls suggest Massachusetts Republican Gabriel Gomez (left) is within striking distance of Rep. Ed Markey (right) in a contest for a U.S. Senate seat. AP hide caption

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Sen. Scott Brown, R-Mass., attends the Republican National Convention in Tampa, Fla., on Aug. 30. Scott lost his re-election bid, but could be running for office again in a matter of weeks. Chip Somodevilla/Getty Images hide caption

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Republican U.S. Sen. Scott Brown (left) answers a question during a debate against Democratic challenger Elizabeth Warren on Monday at the University of Massachusetts in Lowell, Mass. Matt Stone/AP hide caption

itoggle caption Matt Stone/AP