[T]he crowd remained fixed on their support of Mr. Sanders and not on the idea of defeating Mr. Trump. Over and over again they chanted, “We want Bernie. Bernie. Bernie. Bernie.”ADDED: Trump reacts:
The reaction from Mr. Sanders’s supporters was consistent with the anti-Clinton message delivered by demonstrators earlier in the day. Some pro-Sanders protesters took a harder turn on Monday, chanting “Lock her up” in an echo of the message of the Republican National Convention a week earlier, fueled by the resignation of the chairwoman of the Democratic National Committee.
July 25, 2016
"... as he tried to make the case on the first day of the Democratic National Convention that his fans would need to vote for Hillary Clinton in order to defeat Donald J. Trump."