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Cain will make final decision about staying in race within a week

Herman Cain said he will decide within a week whether to remain in the race for the Republican presidential nomination, and plans to consult with family this weekend after allegations of an extramarital affair surfaced earlier this week.

"A week from now I will have made a final decision," Cain said on Fox News Wednesday afternoon.

Read more on The Hill's Briefing Room blog.