Clinton and Sanders Race to the Finish Line in Iowa

With a week to go until the Iowa caucuses and the Democratic presidential race there in a virtual dead heat, Hillary Clinton and Bernie Sanders are mapping out divergent paths toward winning the first votes of the nomination process.

Clinton, after testing out explicit attacks on the feasibility of the Vermont senator's policy proposals, has settled into a more positive approach, pointing out that their differences have more to do with how to achieve their goals than what those goals are. She's relying on her network of paid staff and volunteers to turn tens of thousands of “commit to caucus” cards collected since mid-April into people who will stand for her at their caucus sites on the night of Feb. 1.