Trump admin live updates: Dems react to Hegseth discussing Yemen strike in 2nd chat

Trump signed an executive order Tuesday aimed at lowering healthcare and prescription drug costs.

The order included a directive to improve the program for Medicare to negotiate drug prices, plans to create a program to get better prices for the most expensive drugs, including insulin and directed the FDA to approve state importation programs and approvals for generic drugs.

According to a fact sheet about the order, the government is looking to "eclipse the 22% in savings achieved" by the first year of Medicaid's program to negotiate drug prices. The order also says that the government plans to align the payment with what hospitals pay for them, which the White House says is sometimes "35% lower than what the government" pays.

The order also aims to standardize Medicare costs of drugs regardless of care facility, which the White House says can lower prices by as much as 60%.

-ABC News' Michelle Stoddart

Dan Caldwell, a senior adviser to Defense Secretary Pete Hegseth, has been placed on administrative leave as part of a leak investigation, a U.S. official told ABC News on Tuesday.

Caldwell is a longtime adviser to Hegseth, long before he was named to be the secretary of defense, and was placed on leave following an "unauthorized disclosure," Reuters reported.

On March 21, Joe Kasper, the Defense Department’s chief of staff, directed the "Director for Defense Intelligence (Counterintelligence, Law Enforcement, and Security) to support OSD in leading an investigation into unauthorized disclosures of sensitive and classified information across the Department of Defense."

That memo authorized the use of polygraphs that will be inline with "applicable law and policy" for an investigation that he said would begin immediately.

It is unclear if Caldwell underwent a polygraph.

-ABC News' Luis Martinez

Asked if Russia agreed to anything in its meeting with U.S. special envoy Steve Witkoff, White House press secretary Karoline Leavitt said she didn't want to get ahead of those negotiations but added that there is an "incentive" for Russia to end its war on Ukraine.

Trump spoke with the sultan of Oman Tuesday, who helped facilitate talks between the United States and Iran over the weekend, Leavitt confirmed during the briefing.

"As you know, an additional negotiation between Steve Witkoff and Iran's representative has been scheduled for Saturday. And since these are ongoing negotiations, I have nothing more to add on that," she added.

-ABC News' Molly Nagle

White House press secretary Karoline Leavitt mocked former President Joe Biden when asked about his speech Tuesday night that is focused on protecting social security.

"My first reaction when seeing former President Biden was speaking tonight was I'm shocked that he is speaking at night time. I thought his bedtime was much earlier," she said.

She then defended President Donald Trump's Social Security policy.

"President Trump is absolutely certain about protecting Social Security benefits for law-abiding, taxpaying American citizens and seniors who have paid into this program," she said.