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

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.”

The House Rules Committee convened on Tuesday afternoon to markup the Senate version of Trump's sweeping domestic policy bill. The markup is expected to last for hours.

"H.R.1 has returned to the people's House with final consideration," Rules Committee Chair Virginia Foxx said as she kicked off the markup. "And while I don't often think that the other body improves our legislation, it's important to recognize that much of what the House included in H.R.1 when we initially passed, it is still included."

"A failure to pass this legislation, carries with it, serious negative implications, not only for hardworking taxpayers, but also the nation," Foxx added.

Rules Committee ranking member Jim McGovern, a Democrat, said if the "ugly bill" passes in the House, "it's going to get a lot uglier when people realize what's in it, and not even Donald Trump's new $300 bottle of cologne will cover the stench."

"We are here today on a bill that just dropped from the Senate hot off the press, passed only an hour ago," McGovern said. "It's massive here. It is nearly 1,000 pages long, and I've got to ask: Have any of you read it this time? Because last time we met on this legislation, many of our Republican colleagues had not."

-ABC News' Lauren Peller