Swan — who interviewed the president at the White House on Friday — wrote on Twitter, “I wouldn’t be surprised if somebody gets fired over this.”

In an appearance on MSNBC, Swan elaborated: “This rally was not the rally they had planned, and it’s not the one [Trump] expected.”

“There’s this sort of scramble to figure out what happened,” Swan said regarding expectations of attendance at the rally. “They really miscalculated.”

Swan said Trump was “very excited” about the rally in their interview in the Oval Office Friday, and that Trump’s outside advisers are “already speculating about the firing of people over this.”

“There will be recriminations,” Swan said.