EXPLAINER: Why AP called Nevada for Biden

The Associated Press declared Democrat Joe Biden the winner of Nevada’s presidential contest Saturday, after a new batch of ballots released by state election officials gave the former vice president a more than 2 percentage point lead over President Donald Trump. Counting votes in Nevada has been a slow going process. Though 88 percent of the expected vote has been tabulated, mail ballots postmarked by the Nov. 3 election day can be counted until Tuesday. And there were tens of thousands