Hillary Clinton is expected to formally and publicly concede to Donald Trump this morning after an upset defeat in the presidential election.

Trump praised Clinton in his victory speech overnight, saying the former secretary of state had called to concede. But she has not made any public statements prior to this morning's expected speech.

Instead of addressing her crowd of supporters who had waited for hours at the Javits Center Tuesday night, Clinton campaign chairman John Podesta made a brief statement shortly after 2 a.m., saying the race in several states was "too close to call" and telling supporters to go home.

Clinton staffers and donors are now gathering for her speech at The New Yorker hotel, about a half mile from where she had been planning to celebrate a historic victory Tuesday night.