Live Updates: Pennsylvania, Nevada certify election results for Biden despite Trump challenges

Pennsylvania and Nevada have certified the results of the presidential election in favor of President-elect Joe Biden and Vice President-elect Kamala Harris, amid President Trump and his campaign's legal challenges in the key states. 

“Today @PAStateDept certified the results of the November 3 election in Pennsylvania for president and vice president of the United States,” Pennsylvania Gov. Tom Wolf tweeted. “As required by federal law, I’ve signed the Certificate of Ascertainment for the slate of electors for Joe Biden and Kamala Harris.”

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