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Arlen Spector, the opportunistic political party jumper, has fallen behind Republican Pat Toomey 46 percent to 41 percent according to a new Quinnipiac University poll released Thursday.
Polling a month ago showed Specter ahead 49 percent to 42 percent. Toomey also leads Specter's key primary challenger, Rep. Joe Sestak, 42 percent to 34 percent.
Toomey is considered the front-runner for this year's GOP nomination. He narrowly lost to Specter in the 2004 Republican primary.
Will this be the year Arlen Spector is finally retired by voters?
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