Trump admin updates: Trump marks 1 year since assassination attempt in Butler, PA

Trump signed a memorandum saying “no Federal civilian position that is presently vacant may be filled, and no new position may be created, except as otherwise provided for in this memorandum or required by applicable law.”

The memo also states that any additional hiring that does occur must be in alignment with the merit hiring plan issued by the Office of Personnel Management.

The policy applies to all executive departments and agencies regardless of their sources of operational and programmatic funding.

The policy does not apply to military personnel or to positions related to immigration enforcement, national security or public safety, and does not apply to the executive office.

To carry out the memorandum, heads of agencies are required to “seek efficient use of existing personnel and funds to improve public services and the delivery of those services.”

-ABC News’ Hannah Demissie

White House press secretary Karoline Leavitt told reporters on Monday that President Donald Trump will sign an order delaying the July 9 tariff deadline.

"The president will also sign an executive order today delaying the July 9 deadline to Aug. 1," she said. "So, the reciprocal tariff rate or these new rates that will be provided in this correspondence to these foreign leaders, will be going out the door within the next month or deals will be made."

"And those countries continue to negotiate with the United States. We've seen a lot of positive developments in the right direction. But the administration, the president and his trade team want to cut the best deals for the American people and the American worker. That's what they're focused on. And in the effort of transparency, these letters will continue to be posted to Truth Social. So you can enjoy them yourself."

Trump already delayed the high tariff rates against dozens of U.S. trade partners that he rolled out on April 2 until Wednesday.

The U.S. will put in place a 25% tariffs on imports from Japan and South Korea starting on Aug. 1, according to letters posted by President Donald Trump on his social media platform on Monday.

Trump wrote to Japanese Prime Minister Shigeru Ishiba and South Korean President Lee Jae-myung to inform them of the news, citing unfair trade balances.

"Our relationship, unfortunately, has been far from Reciprocal," the letters read.

Trump added in each letter, "We look forward to working with you as a Trading Partner for many years to come. If you wish to open your heretofore closed Trading Markets to the United States, and eliminate your Tariff, and Non Tariff, Policies and Trade Barriers, we will, perhaps, consider an adjustment to this letter."

Secretary of State Marco Rubio and Middle East Special Envoy Steve Witkoff are meeting with Prime Minister Benjamin Netanyahu at Blair House on Monday ahead of his dinner with President Donald Trump, a White House official confirmed to ABC News.

The meeting comes as Trump has publicly expressed his desire to finalize a ceasefire agreement between Israel and Hamas this week.

-ABC News' Lalee Ibssa