Published: Jun 06, 2011 7:28 PM EDT
Updated: Jun 06, 2011 7:29 PM EDT

WASHINGTON (AP) - People involved in the John Edwards investigation say prosecutors have e-mails between the former presidential candidate and an aide that they plan to use against him at trial.

Edwards was indicted Friday for failing to report nearly $1 million allegedly spent to keep his pregnant mistress in hiding during the 2008 campaign.

Prosecutors must prove Edwards knew about the payments. He says he is innocent of any crime.

People involved in the investigation told The Associated Press the prosecutors have emails sent between Edwards and his former speechwriter, Wendy Button, in summer 2009 as they drafted a never-released statement to acknowledge paternity. The sources requested anonymity to discuss evidence yet to be made public. But they say some included the admission he knew about payments from his former finance chairman, Fred Baron.

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