Sen. Bernie Sanders has ended his campaign for president, establishing former Vice President Joe Biden as the presumptive Democratic nominee. Sanders had enthusiastic support from young voters and was a fundraising juggernaut, but couldn’t overcome a rapid coalescing in the party around Biden. AP political reporter Will Weissert was on the campaign trail with Sanders throughout the primary and joins Julie Pace to break down the end of the campaign. Plus, what does Biden need to do in order to defeat President Trump in November.