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The extended buy comes as Richard Carmona announced raising $2.2 million in the third quarter, double what the candidate raised the quarter prior. He's outperformed President Obama in most recent polls, holding GOP Rep. Jeff FlakeJeff FlakeWounded Ryan faces new battle Overnight Tech: High court hears case on where patent suits are filed | House to vote on blocking internet privacy rules | Facebook's new tools for voters House to vote Tuesday on blocking Obama internet privacy rules MORE to a single-digit lead and leading him slightly in the most recent poll.

The National Republican Senatorial Committee also invested in the race this week, spending $550,00 on a buy to run through Oct. 11.