Former New York mayor Rudy Giuliani has emerged as a "serious" contender to become the next US secretary of state, a top aide to President-elect Donald Trump said on Tuesday.
Republican Donald Trump neared the end of his vice-presidential search on Thursday, with Indiana Governor Mike Pence and former US House Speaker Newt Gingrich appearing as the front-runners.
After months of bitter campaigning, Bernie Sanders on Tuesday offered his long-awaited endorsement for Democratic presidential hopeful Hillary Clinton, saying he would work hard to help his former rival win the White House.
