Trump admin updates: Trump says tariff letters to be sent to 'various countries' on Monday

As House members scramble to make their way back to the Capitol to vote on the Senate-passed Trump policy megabill, several have said their flights were canceled due to inclement weather -- which could create an attendance problem when the measure comes up for a final vote as early as Wednesday.

Wisconsin Democrat Mark Pocan posted a video on X: a video on X: “Hi, I am at the airport in Madison and my flight just got canceled due to thunderstorms going to D.C. So, I am driving to Chicago hoping to get one of the first flights 6 a.m. tomorrow. This is part of the glamorous life of Congress.”

Illinois Democrat Raja Krishnamoorthi said he’s hosting a pop-up Zoom town hall from his car as he drives to D.C. since his flight was canceled. “My flight was canceled, so I’m hosting a pop-up Zoom town hall from the car as I drive to D.C. to vote NO on Trump’s “Large Lousy Law,” a budget that guts Medicaid & slashes our safety net to fund tax cuts for the wealthiest,” he said in a post on X.

South Carolina Republican Nancy Mace said in a post on X: “Both my flights to DC, one for tonight and one for early tomorrow morning have been canceled by the airline. sigh Scrambling to find a way to get to DC in time to vote for the Big Beautiful Bill.”

Her fellow South Carolina Republican Russell Fry posted a video on X of him in the car heading back to D.C.

“I am not going to chance being stuck in Myrtle Beach for this historic opportunity,” he said. I am getting in the car right now. We are just leaving town and we are gonna drive all the way through until we get to Washington, DC tonight. The moment is too important to sit around and wait in an airport. Let’s go deliver on President Trump’s agenda… I am going to have one big, beautiful road trip,” he said.

-ABC News’ Lauren Peller and Lalee Ibssa

The White House confirmed Tuesday that it has stopped the shipment of some air defense and precision guided weapons that were on track to be sent to Ukraine.

Officials said the decision followed an assessment of U.S. stockpiles.

“This decision was made to put America’s interests first following a [Department of Defense] review of our nation’s military support and assistance to other countries across the globe,” White House spokesperson Anna Kelly said in a statement sent to reporters.

“The strength of the United States Armed Forces remains unquestioned -- just ask Iran,” she added.

Politico first reported the decision. It was not immediately clear whether other shipments of weapons would be released and how much was paused.

-ABC News’ Kelsey Walsh, Molly Nagle and Anne Flaherty

Trump continues to waiver back and forth on trade negotiations, saying on Tuesday that he is not interested in extending the tariff deadlines for countries that don't meet his July 9 deadline. It was just Friday that he suggested the deadline could be extended. Now he claims, he's planning to implement his reciprocal tariffs.

"Mr. President, are you thinking of extending the pause on tariffs beyond July 9?" a reporter asked him as he took questions on Air Force One.

"No. I'm not thinking about the pause. I'll be writing letters to a lot of countries. And I think you're just starting to understand the process," the president responded.

Trump slammed negotiations with Japan, saying he doesn't think a deal will be able to get done and noting that he'll be sending them a letter imposing tariffs soon. He later added that the United States could soon secure a trade deal with India that would allow Americans to "go in and compete" in order to impose fewer tariffs.

-ABC News' Lalee Ibssa

Republican Sen. Lisa Murkowski released a lengthy new statement on her vote in support of President Trump's domestic policy bill, which narrowly passed the Senate earlier Tuesday.

Calling it "one of the hardest votes" she has taken during her time in the Senate, the Alaska lawmaker explained her thinking behind voting for the bill in the end, despite her many concerns over cuts to Medicaid and food stamps. She noted it is the "people of Alaska that I worry about the most."

“But, let’s not kid ourselves," she continued. "This has been an awful process -- a frantic rush to meet an artificial deadline that has tested every limit of this institution. While we have worked to improve the present bill for Alaska, it is not good enough for the rest of our nation -- and we all know it."

“My sincere hope is that this is not the final product. This bill needs more work across chambers and is not ready for the President’s desk. We need to work together to get this right.”