But the fact that Sanders is now making her work for New York, the state where she lives and which she represented for eight years in the Senate, is seriously testing Clinton’s patience. A rope line accuser in a place she expected a homecoming — Purchase, New York, was the upstate hamlet where she kicked off her political career when she ran for Senate in 2000 — was the final straw.

After winning a clean sweep of five states on March 15 — Florida, North Carolina, Illinois, Missouri and Ohio — Clinton and her operatives celebrated as though the nominating process was over. At her campaign headquarters in Brooklyn, Clinton staffers sang along to Journey’s “Don’t Stop Believin’” waving flags in the air, drinking beer and posting the victory videos on Twitter.

Now, the expected pivot to November is stalled as the primary drags on. “After she won the five states, they all thought, ‘OK we’re done,’” said a Clinton ally with close ties to the campaign. “Now, it’s an annoyance. Now they’re challenging her on the rope line. People in the audience are challenging her. She’s in a state of, ‘What else do I have to do?’”