PHILADELPHIA — Sen. Bernie Sanders continued to make the case for Hillary Clinton in a rapid-fire round of breakfast appearances in here Tuesday.

He addressed several delegations, including those of Alaska, Wisconsin, Florida, California, and his birth state of New York.

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Calling Republican presidential nominee Donald Trump a “demagogue,” he told the New York group that “our first task” is to elect Clinton, while the second is to continue the political revolution.

This is the tricky needle Sanders is trying to thread to bring his more disgruntled supporters into the Clinton fold: showing his supporters the stakes, acclimating them to Clinton, and giving them some hope that their progressive fight isn’t over. To woo independents, however, Clinton can’t alienate independents and Republicans who are more fiscally conservative.

Will his repeated overtures work? Sanders’ New York delegates greeted him with cheers. Some had been quietly checking their phones throughout previous speeches. Abigail Field, a Sanders delegate from Cutchogue, said she’d cried Monday night. She acknowledged a segment of Sanders supporters who were “really angry.”

Clinton “has to win them over,” she said.