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

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

As time ticks on President Donald Trump's Wednesday tariff deadline, Treasury Secretary Scott Bessent claimed the administration would be making "several announcements in the next 48 hours."

"We are going to have several announcements in the next 48 hours. And Joe, I think what President Trump is concerned about is the quality of the deals, not the quantity, as you could imagine," he said during an appearance on CNBC's Squawk Box.

Bessent claimed that his inbox has been full of offers after Trump elevated his threats to re-impose reciprocal tariff rates.

But similar to Commerce Secretary Howard Lutnick, Bessent noted that Aug. 1 would be the day when the rates actually go into effect.

"So it's going to be a busy couple of days," Bessent said. "But importantly too that President Trump has said that they would the countries would not go back to the reciprocal rate until Aug. 1."

Asked about the trade letters Trump claims he will be sending to America's trading partners starting on Monday, Bessent called them "standard" letters with an option to continue negotiations. Bessent also previewed a meeting with Chinese officials "in the next couple of weeks" to advance trade talks.

Prime Minister Benjamin Netanyahu of Israel took off late on Sunday for Washington, where President Donald Trump is scheduled to host him Monday for a state dinner.

The pair are expected to discuss the Israel-Iran conflict, including the future of Tehran's nuclear program, along with the potential for a ceasefire between Israel and Hamas, according to Netanyahu’s office.

Netanyahu in a statement said he would also thank Trump for Washington’s "very powerful" involvement with Israel, including Trump’s decision to join in strikes on Iran last month.

"We have never had such a friend in the White House," Netanyahu said. "Our joint involvement brought a great victory over our mutual enemy -- Iran."

Netanyahu will also use the visit, which will be his third since Trump took office in January, to meet with members of Congress and administration officials, according to his office.