In this hour I speak with Olivier Knox, the Chief Washington Corespondent for Yahoo News, about the results from the Nevada Democratic Caucus and South Carolina Republican Primary, and preview the upcoming primary and caucus.

Donald Trump ran away with South Carolina. Hillary Clinton's strong organization and attention to local details staved off Bernie Sanders' by 5 points in Nevada. And Jeb Bush dropped out of the race after a poor showing.

Trump has now won the New Hampshire and South Carolina primaries against a fractured GOP field, while Sens. Ted Cruz and Marco Rubio are battling for second place.

Clinton worked the Las Vegas casinos like her chances at the Democratic nomination depended on them, and notched a victory that stops Sanders' momentum and puts her campaign on solid footing heading into South Carolina.