EXPLAINER: What's with all the election audits?

A Chatham County election official posts a sign in the public viewing area before the start of a ballot audit, Friday, Nov. 13, 2020, in Savannah, Ga. Election officials in Georgia’s 159 counties are undertaking a hand tally of the presidential race that stems from an audit required by state law.

As they seek to overturn — or at least cast doubts on — the results of the Nov. 3 presidential election, President Donald Trump and his Republican allies have zeroed in on a routine and common process: post-election audits.

Until now, the Trump campaign's flurry of legal challenges hasn't unearthed any evidence of widespread voter fraud, and election experts as well as state and federal officials have said there was none.

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