Sen. Tim Kaine (D-Va.) is preparing a new resolution to block U.S. military action against Venezuela, should President Donald Trump pursue such efforts without first seeking congressional authorization.

“I will move with colleagues ... immediately should there be military action,” Kaine said in an interview with CBS News’ “Face The Nation” on Nov. 30.

His remarks come amid an ongoing U.S. military buildup in the Caribbean Sea. U.S. forces have already attacked alleged drug smuggling vessels, and Trump has indicated a willingness to pursue additional direct military action against Venezuela.

Kaine has already sponsored two previous resolutions seeking to limit U.S. military action in the region.

His first resolution broadly called for the withdrawal of U.S. forces from hostilities that Congress has not authorized. The measure failed in a 51–48 vote on Oct. 8.

Kaine’s second resolution aimed to block U.S. military action directly against Venezuela and failed in a 51–49 vote on Nov. 6.

Speaking with CBS News on Nov. 30, the senator said he expects that the vote counts will have shifted in light of recent events, such as Trump’s declaring Venezuela’s airspace closed.

Kaine also cited a recent report by The Washington Post alleging that U.S. forces fired on the survivors of a Sept. 2 strike on a suspected drug boat. The Washington Post’s report raised concerns that these actions could constitute a war crime.

“We think the escalating pace and some of the recent revelations ... we do believe that we will get more support for these motions when they are refiled,” Kaine said.

The Epoch Times could not independently confirm the reported follow-on strike during the Sept. 2 operation.

Responding to the report, Secretary of War Pete Hegseth issued a statement denouncing what he described as “more fabricated, inflammatory, and derogatory reporting to discredit ... incredible warriors fighting to protect the homeland.”

Republican and Democratic heads of the House and Senate armed services committees have since announced congressional probes into the allegations surrounding the Sept. 2 strike.

“If that reporting is true, it’s a clear violation of the [Department of War’s] own laws of war, as well as international laws about the way you treat people who are in that circumstance. And so, this rises to the level of a war crime, if it’s true,” Kaine said.

He said he would like to see clearer evidence that individuals targeted in recent U.S. strikes in the waters around Latin America were drug traffickers, as the Trump administration has asserted. He said he would also like more details about the legal rationale for the strikes.

On Nov. 5, the Trump administration briefed a select group of lawmakers on the legal basis for striking alleged drug vessels.

House Armed Services Committee Chairman Mike Rogers (R-Ala.), who was among the select group of lawmakers briefed on Nov. 5, praised the briefing and urged the Trump administration to share more details about its thinking with the general public.

Rogers has since vowed to investigate the Sept. 2 strike incident.

Senate Armed Services Committee Chairman Roger Wicker (R-Miss.), who has voted against both of Kaine’s past war powers resolutions, also vowed to investigate the alleged double-tap strike.