Biden holds big lead nationally, but 77 percent 'likely to change their minds'

Former Vice President Joe Biden has a two-to-one advantage over the next closest Democratic presidential contender in a new poll, but more than three-quarters of likely primary voters say they could still change their minds.

The national survey from Park Strategies finds Biden at 32 percent support, followed by Sen. Bernie Sanders (I-Vt.) at 15 percent, Sen. Elizabeth Warren (Mass.) at 13 percent, Sen. Kamala Harris (Calif.) at 12 percent and South Bend, Ind. Mayor Pete Buttigieg at 7 percent. No other candidate has more than 2 percent support.

While...