In this April 19, 2017, file photo, former Vice President Joe Biden attends the opening ceremony for Museum of the American Revolution in Philadelphia. Biden insists he is not making another presidential bid, despite giving a rousing speech to New Hampshire Democrats about restoring dignity to politics and winning back working-class voters on April 30 in Manchester, N.H.
In this April 19, 2017, file photo, former Vice President Joe Biden attends the opening ceremony for Museum of the American Revolution in Philadelphia. Biden insists he is not making another presidential bid, despite giving a rousing speech to New Hampshire Democrats about restoring dignity to politics and winning back working-class voters on April 30 in Manchester, N.H. Matt Rourke AP
In this April 19, 2017, file photo, former Vice President Joe Biden attends the opening ceremony for Museum of the American Revolution in Philadelphia. Biden insists he is not making another presidential bid, despite giving a rousing speech to New Hampshire Democrats about restoring dignity to politics and winning back working-class voters on April 30 in Manchester, N.H. Matt Rourke AP

Who can defeat Donald Trump? Wary Republicans scan the Democratic field

May 12, 2017 4:53 PM