Hillary Clinton tells Fresh Air the mechanism for such a challenge does not exist in the U.S. "and usually we don't need it." She also says she is "optimistic about our country, but I am not naive."
NPR's Robert Siegel speaks with Sen. Bernie Sanders about his new book, Our Revolution, which outlines his programs to combat inequality, discrimination and lack of opportunity in the U.S.
The president-elect has said he will ask lawmakers to repeal the Affordable Care Act. Or he can use regulations and the budget to dismantle the federal health law he calls "a disaster."
Mike Pence is defending Donald Trump --and joining attacks on Bill Clinton — after a weekend where he criticized his running mate, and there was speculation that he might leave the Republican ticket.
Former New York City Mayor Rudy Giuliani went on the Sunday morning political talk shows on behalf of the Trump campaign. But Giuliani conceded Trump's statements were serious and damaging.
That may be the question for Republicans who haven't yet joined the growing chorus of calls for Trump to withdraw his candidacy as he heads into the second presidential debate on Sunday.
Donald Trump followed up Monday's debate by insulting a former Miss Universe winner. He told a morning show that Alicia Machado "gained a massive amount of weight, and it was a real problem."