By ZEKE MILLER and SEUNG MIN KIM Associated Press
WASHINGTON (AP) — Vice President Kamala Harris moved swiftly Monday to lock up Democratic delegates behind her campaign for the White House after President Joe Biden stepped aside amid concerns from within their party that he would be unable to defeat Republican Donald Trump.
Biden’s exit Sunday, prompted by Democratic worries over his fitness for office, was a seismic shift to the presidential contest that upended both major political...