Dem race shaken, stirred as Sanders, Clinton meet in debate

WASHINGTON (AP) — Hillary Clinton and Bernie Sanders are in a tug-of-war over who's the best standard-bearer for progressive values as they road test lines of argument for the first one-on-one debate of the Democratic campaign.
The race for the Democratic nomination, once seen as a sure thing for Clinton, took on new vigor this week after Sanders held the former secretary of state to a whisper-thin margin of victory in Iowa's leadoff caucuses. The tone of their back-and-forth has become increasingly sharp this week, and the candidates agreed to add four more debates to the primary season schedule, including Thursday's faceoff in Durham, New Hampshire.