Former New York City Mayor Rudy Giuliani says he spent three weeks authenticating the materials on a copy of a hard drive that once allegedly belonged to Hunter Biden, the son of Democratic presidential nominee Joe Biden.
Giuliani Details Steps Taken to Authenticate Hunter Biden Material
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President Donald Trump's lawyer and former New York City Mayor Rudy Giuliani speaks to reporters outside the White House in Washington on July 1, 2020. Chip Somodevilla/Getty Images

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