US President Donald Trump’s musings about a potential third-term bid for the White House have run up against at least one obstacle: House Speaker Mike Johnson.

Johnson, the Republican leader who has built his career by drawing closer to Trump, said they have discussed the issue, but the speaker held the line against a Constitution-bending third term.

“I don’t see a path for that,” Johnson said on Tuesday at his daily press conference at the Capitol, on day 28 of the federal government shutdown.

Johnson said he thinks Trump understands the situation: “He and I have talked about the constrictions of the Constitution.”

The speaker described how the Constitution’s 22nd Amendment does not allow for a third presidential term and changing that, with a new amendment, would be a cumbersome, decade-long process of winning over states and votes in Congress.

“But I can tell you that we are not going to take our foot off the gas pedal,” he said. “We’re going to deliver for the American people, and we’ve got a great run ahead of us – we’re going to have four strong years.”