Bernie Sanders gave a rousing speech at the Democratic National Convention on Monday that sought to unify the Democratic Party behind Hillary Clinton’s candidacy. Some people, though, were not buying it. Specifically, Sanders’ most diehard supporters, some of whom promised to sit out the election or vote for a third-party candidate rather than back Clinton.

Here are the faces of some of the most disappointed, angry, and downright despondent Sanders supporters in Philadelphia on Monday.

Read more Slate coverage of the 2016 campaign.