Trump admin updates: Vance meets with Zelenskyy in Rome

Durbin was "certainly" concerned about possible espionage associated with the plane.

"We're going to go through every square inch of that to make certain that Qataris or some other government doesn't have access to the most important decisions made by our president. This is irresponsible,” Durbin said.

Tillis also raised concern about the costs needed to secure the jet.

“Everybody needs to know that Air Force Once is not like every other Boeing. It’s going to have to be put through a lot of paces and probably every square inch analyzed before the president considers it his primary mode of transportation," he said. "And then you've got to work through the cost benefit of it right? I mean we are in a world of DOGE so we've got to figure out whether it's worth upfitting or selling it and writing a check to the treasury and helping us with our debt reduction."

-ABC News' Allison Pecorin and Isabella Murray

More Democrats expressed frustration and concern over the potential gift of a Qatari jet to the Trump administration.

"The biggest issue here is this is a bribe to a president," said Sen. Mark Kelly, D-Ariz.

Sen. Tim Kaine, D-Va., said he thinks Congress would need to appropriate money in order to retrofit the airplane for use as Air Force One, which "is something where the appropriators would not just allow the president to move money from some column into this massively expensive retrofit of the Qataris' plane. So yeah, that's on us."

Sen. Dick Durbin, D-Ill., the ranking member of the Senate Judiciary Committee, said there are questions about Bondi's role, given she was a paid lobbyist of the Qatari government before she became the attorney general.

"We have questions that we've asked about how she cleared her ethics statement on her relationship with Qatar, and I think that this plain deal is really with that front and center," he said.

-ABC News' Allison Pecorin and Isabella Murray

Senate Minority Leader Chuck Schumer, D-N.Y., sent a letter Tuesday to Attorney General Pam Bondi expressing concern about the "appearance of naked corruption" posed by President Donald Trump's reported plans to accept a jet from the Qatari government.

Schumer said he believes the jet poses a "grave security risk" and cited reporting that Bondi personally signed off on the transaction.

In light of what Schumer called Bondi's "central role in approving the proposal," he asked Bondi to respond to a number of questions.

The senator asked Bondi to provide additional details on whether Qatar is providing a "ready-on-day-one" aircraft.

If so, Schumer asked Bondi for more information about how the aircraft would be known to be safe. If not, he asked Bondi whether American taxpayers will have to "cover the costs of the extensive retrofit and security modifications".

He also asked Bondi to provide more information about the existing Boeing contract for two new presidential aircraft.

-ABC News' Allison Pecorin

Senators on Capitol Hill on Tuesday offered varied assessments on how the details of the president receiving a jet as a gift from the Qatari government to use as Air Force One would pan out.

Specifically, the senators differed on the cost of retrofitting the plane and Congress' role in appropriating money to do so, national security concerns, and the ethics of taking the plane as a gift from a foreign country.

A number of GOP senators shrugged off the reports of the gift.

"I don't think there's anything official out there. This is a hypothetical," Senate Majority Leader John Thune, R-S.D., said at a weekly leadership press conference, dodging questions about his comfort level with Trump accepting the plane.

"And I'm sure that if and when there is, it's no longer a hypothetical, I can assure you there'll be plenty of scrutiny of whatever that arrangement might look like," he added.

Pressed on whether he thought this gift from a foreign government could be a national security concern, Thune demurred, repeating that more details would need to come out.

"I mean, I just said there'll be plenty of scrutiny. There are lots of issues around that that I think will attract very serious questions if and when it happens," he said.

-ABC News' Allison Pecorin and Isabella Murray