Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.

LAKEWOOD, CO - OCTOBER 29:  Republican presidential candidate Ben Carson speaks during a news conference before a campaign event at Colorado Christian University on October 29, 2015 in Lakewood, Colorado. Ben Carson was back on the campaign trail a day after the third republican debate held at the University of Colorado Boulder.  (Photo by Justin Sullivan/Getty Images)
LAKEWOOD, CO - OCTOBER 29:  Republican presidential candidate Ben Carson speaks during a news conference before a campaign event at Colorado Christian University on October 29, 2015 in Lakewood, Colorado. Ben Carson was back on the campaign trail a day after the third republican debate held at the University of Colorado Boulder.  (Photo by Justin Sullivan/Getty Images)

    JUST WATCHED

    Carson on questions about past: 'This is just stupid'

MUST WATCH

Carson on questions about past: 'This is just stupid'

Donald Trump and Dr. Ben Carson are again on top in a new poll out of South Carolina. CNN's Dana Bash reports.

Carson on questions about past: 'This is just stupid'

Donald Trump and Dr. Ben Carson are again on top in a new poll out of South Carolina. CNN's Dana Bash reports.