Trump says 3rd term isn't a joke, despite term limit

The Justice Department is considering a major reorganization effort that would include a merger between the Drug Enforcement Agency and the Bureau of Alcohol, Tobacco and Firearms, according to a memo circulated to department leadership this week.

The memo from Deputy Attorney General Todd Blanche, reviewed by ABC News on Thursday, seeks feedback from DOJ component heads on the potential for merging the two top agencies tasked with enforcing federal gun and drug laws -- as well as potential staff reductions within the department's tax division.

It also suggests that the U.S. Marshals Service take over INTERPOL Washington, a component in DOJ tasked with coordinating with law enforcement agencies around the globe.

A DOJ official, speaking on the condition of anonymity, stressed that none of the proposed changes to the department's internal structure are final -- noting Blanche has requested feedback from officials by next Wednesday. Some of the potential changes could also further require sign-off from Congress.

Reuters was first to report the potential merger between DEA and ATF.

-ABC News' Alexander Mallin

Despite the Signal scandal, National Security Adviser Mike Waltz will still travel to Greenland with the Vice President JD Vance and Second Lady Usha Vance, a White House official confirmed on an X post Thursday.

"He was always going," White House deputy press secretary Anna Kelly said in a post. "We’ve been confirming it for days."

The White House previously confirmed that Waltz was joining the trip with the second lady.

-ABC News' Michelle Stoddart

Senate Armed Services Committee Chairman Roger Wicker and Ranking Member Jack Reed sent a letter Thursday to the Department of Defnese Acting Inspector General formalizing the request for an inquiry into the Signal chat.

"This chat was alleged to have included classified information pertaining to sensitive military actions in Yemen. If true, this reporting raises questions as to the use of unclassified networks to discuss sensitive and classified information, as well as the sharing of such information with those who do not have proper clearance and need to know," they said.

Among the requests the senators asked for, were an assessment of Defense Department classification policies, and "assessment of whether any individuals transferred classified information, including operational details, from classified systems to unclassified systems, and if so, how."

-ABC News' Allison Pecorin

White House press secretary Karoline Leavitt was asked if the White House would hold anyone accountable for what happened and if it would potentially change its messaging on the incident.

“Well, we have never denied that this was a mistake, and the national security adviser took responsibility for that, and we have said we are making changes. We are looking into the matter to ensure it can never happen again," she said.

Asked if the White House would cooperate with any requests from Congress regarding the Signal chat, Leavitt left it open-ended.

“We haven't seen a request from Congress come through our inboxes yet, and when that does, we'll have an answer," she said.

-ABC News' Hannah Demissie