Bernie Sanders endorsed Hillary Clinton for president on Tuesday, but a lot of people have argued that Sanders squandered political capital by waiting so long after the final primaries to get behind the presumptive nominee. Indeed, Clinton’s favorability among Sanders’s primary voters is rising, and the vast majority of Sanders’s voters are already backing her. But the same polling also shows a smaller bloc of Sanders supporters still reluctant to get behind Clinton. Sanders’s endorsement, in other words, might still be helpful to Clinton. CONT.
Harry Enten, FiveThirtyEight