President Donald Trump said he will make a “major announcement” Saturday on the government shutdown and his demand that Congress fund a border wall.

Trump has previously said he’s considering declaring a national emergency to bypass Congress and fund the wall. The president hasn’t budged from his demand that Congress spend US$5.7 billion this year on a border wall even as the partial shutdown entered its 28th day on Friday.

White House Press Secretary Sarah Sanders declined to say whether Trump would declare an emergency at his announcement, which he said would be at 3:00 p.m. in Washington. “I’m not going to get ahead of the president,” she said.

A Trump tweet late Friday previewing the announcement capped three days of dramatic twists in a clash between the president and House Speaker Nancy Pelosi that has become increasingly personal.

Pelosi earlier in the day accused the Trump administration of leaking her plan to fly commercially to Afghanistan, forcing her to scuttle the trip because of the heightened danger, after word of her intentions began spreading among several media organizations.

Trump on Thursday publicly revealed plans for the trip in a letter denying use of military aircraft for her congressional delegation to visit troops in the war zone. A day earlier Pelosi publicly suggested Trump either delay his State of the Union speech or submit it in writing, citing the shutdown.

“The fact that they would leak that we were flying commercial is a danger not only us but other people flying commercial,” Pelosi told reporters Friday at the Capitol. “It was very irresponsible on the part of the president.”

Sanders later denied the administration leaked the information about the commercial flight. Pelosi didn’t answer a question about why she believes the administration was behind the leak.