Democratic National Committee Chair Tom Perez met privately on Tuesday with members of the Congressional Progressive Caucus to hear concerns over the nominating process from the party’s left flank. The conversation came in the wake of progressive frustration over the Iowa Democratic Party’s handling of the caucuses last week — in which Sen. Bernie Sanders topped former South Bend, Indiana, Mayor Pete Buttigieg, but a series of snafus prolonged and frustrated the process, obfuscated the results, and left Buttigieg claiming a two-delegate victory.

Perez, according to people in the room, brought up the debacle himself, criticizing the IDP for its handling of the caucus, promising the limited recanvass Sanders has called for would be carried out effectively and professionally. Last week, Perez had attempted to take belated control of the situation — at one point, he even called for a recanvass of the results — but was rebuffed by Iowa Democratic Party Chair Troy Price, who said Perez didn’t have the authority to do so.

“What happened last week was completely unacceptable,” Perez told The Intercept in a statement. “We are all in this together. We succeed together, and we all endure challenges together. We’ve been successful in electing Democrats up and down the ballot in 2017, 2018, and 2019, and I think we’re going to win this presidential election in 2020. That’s our sweet spot, and we are building the organizational structure needed to get there. And I think we have to have a conversation, and I’ve said this more than once, about the issue of primaries versus caucuses.”