Trump admin updates: Vance meets with Zelenskyy in Rome

The Department of Homeland Security has asked the Department of Defense to provide more than 20,000 National Guard troops to participate in the administration's domestic immigration operations, two U.S. officials with knowledge of the request told ABC News on Thursday.

One official said Pentagon lawyers were reviewing the DHS request that the troops participate in "interior immigration enforcement."

Another official said the request to provide National Guard members is still being considered, and the official added that the plan is still premature and being planned out.

In a statement to ABC News, a Defense Dept. spokesperson said, "Defending the homeland and protecting the U.S. territorial integrity is a fundamental DoD mission. The Department will continue to work and plan with our DHS partners to effectively meet requests for DoD support in safeguarding U.S. sovereignty, territorial integrity, and security."

The request was first reported by the New York Times on Thursday.

The request is tied to providing more manpower to U.S. Customs and Border Protection in what will be an operation led by Immigration and Customs Enforcement.

It is unclear what role the National Guard might play in assisting "interior immigration enforcement."

Typically, U.S. military assistance with DHS immigration operations has been limited to the southwestern border and only in a support role to DHS personnel, who are the ones who carry out law enforcement duties.

-ABC News' Luis Martinez

Department of Homeland Security Secretary Kristi Noem said the U.S. Secret Service is looking into a post from former FBI Director James Comey, in which she and others in the White House say is a threat to President Donald Trump

"Disgraced former FBI Director James Comey just called for the assassination of @POTUS Trump," she posted on X on Thursday. "DHS and Secret Service is investigating this threat and will respond appropriately."

FBI Director Kash Patel also said in a post on X that his agency is aware of the post from Comey and is providing support to the FBI.

In a since-deleted Instagram post, Comey had a picture showing "8647" written in seashells on the beach, with the caption, "Cool shell formation on my beach walk."

Some far-right allies of Trump, including Laura Loomer, have alleged that Comey is calling for violence against the president.

To "86" something has fairly broad interpretations as a slang term -- and can simply mean to nix or "get rid of" something.

Comey said he figured the message was political, but didn't realize it called for violence against Trump.

"It never occurred to me but I oppose violence of any kind," Comey said in a follow-up post to Instagram.

Anthony Guglielmi, chief of communications for the U.S. Secret Service said in a statement to ABC News that the agency "vigorously investigates anything that can be taken as a potential threat against our protectees" and is aware of the post made by Comey.

-ABC News' Luke Barr and Alexander Mallin

Trump announced over $200 billion in new commercial deals between the United States and the United Arab Emirates.

Among the deals were ExxonMobil partnering with the Abu Dhabi National Oil Company for a $60 billion investment to expand oil and natural gas production.

Boeing and GE Aerospace secured a $14.5 billion commitment from Etihad Airways for 28 American-made aircraft, according to the White House.

Qualcomm announced plans to establish a Global Engineering Center in Abu Dhabi, focusing on artificial intelligence and data centers.

Emirates Global Aluminum will invest $4 billion in a new aluminum smelter in Oklahoma, the White House said.

-ABC News' Kelsey Walsh

Secretary of State Marco Rubio spoke with reporters Thursday and set the bar low for talks between Russia and Ukraine.

"At this point, I think it's abundantly clear that the only way we're going to have a breakthrough here is between President Trump and President Putin," he said.

Rubio did not give specifics about when such a meeting would take place.

He again sent mixed messages about how committed the Trump administration was to pressing on with the negotiations.

Rubio also announced that he would meet again Friday with the Ukrainian foreign minister and the delegation that travelled to the country for talks with Russia, while a lower-level U.S. official would meet with the Russian delegation.

-ABC News' Shannon Kingston