DSCC extends ad buy in Arizona Senate race

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 FlakeMcConnell quashes Senate effort on guns Bipartisan gun measure survives test vote Senate Republicans may defy NRA on guns 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.

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