Sen. Bernie Sanders' robust start in the race for the presidential nomination is triggering alarm among congressional Democrats, with many warning that a ticket headed by the self-declared socialist could be devastating to the party's chances of winning the Senate and holding the House in November.

Hillary Clinton is not done talking about Bernie Sanders.

Pete Buttigieg and Joe Biden stepped up their criticisms of Bernie Sanders on Thursday, seeking to dull any momentum the progressive senator may gain heading into next week's Iowa caucuses.

Elizabeth Warren accused Bernie Sanders of calling her a liar before a national television audience during a tense, post-debate exchange in which she refused to shake his outstretched hand, according to audio released by CNN.

Marshalltown, Oct 26 (AP/UNB) — Bernie Sanders insists he feels better than ever less than a month after heart surgery, but his return to the campaign trail this week sparked new questions about the unusually old age of the Democratic Party's leading 2020 presidential candidates.