Biden edges rivals, Buttigieg joins top-tier in new New Hampshire poll

A new poll in the state that holds the first primary in the White House race gives former Vice President Joe Biden indicates slight edge over his main rivals for the Democratic presidential nomination. And the survey – from Quinnipiac University – also suggests that South Bend, Indiana Mayor Pete Buttigieg has joined Biden and Sens. Elizabeth Warren and Bernie Sanders in the top-tier of contenders in New Hampshire.