Elizabeth Warren is among the top three choices for Joe Biden's running mate, according to his selection committee. Aides to Biden, the two-term vice president and now the presumptive 2020 Democratic presidential nominee, are seriously considering the Massachusetts senator and former White House hopeful, the Associated Press reported Friday. Warren's name has floated to the top of the short list, along with California Sen. Kamala Harris and Obama-era national security adviser Susan Rice, as his vetting team enters the process's second stage. Pundits believe Warren could energize more liberal Democrats compared to Biden, but she's a septuagenarian like him and...