Sen. Rand Paul on Saturday sharply criticized fellow Republican Sen. J.D. Vance for social media comments praising a U.S. military strike that killed 11 people on a vessel tied to the Venezuelan criminal group Tren de Aragua.

Vance, an Ohio Republican, posted on X that “killing cartel members who poison our fellow citizens is the highest and best use of our military,” and replied to a journalist who described the operation as the killing of civilians without due process by saying, “I don't give a s*** what you call it.”

Paul, a Kentucky Republican often described as the GOP’s most prominent libertarian, took issue with Vance’s rhetoric, saying it glorified executions without trial. "Did he ever read To Kill a Mockingbird? Did he ever wonder what might happen if the accused were immediately executed without trial or representation?" Paul wrote on X. He called Vance's statement "a despicable and thoughtless sentiment to glorify killing someone without a trial."

The strike targeted a vessel described by U.S. officials and media accounts as involved in the illicit drug trade and said to be connected to Tren de Aragua, a criminal organization based in Venezuela. Reports said 11 members of the group were killed in the operation. A liberal journalist responding to Vance had argued that "killing the citizens of another nation who are civilians without any due process is called a war crime," prompting Vance's blunt reply.

Paul's rebuke highlights an intra-party clash over the use of military force and due process. Libertarian-leaning Republicans often emphasize legal protections and limits on executive action, while other conservatives have advocated more aggressive measures against transnational criminal organizations that U.S. officials and some lawmakers say threaten public safety.

Legal experts and rights advocates have previously warned that lethal actions against foreign nationals, particularly those taken outside traditional battlefields, raise complex questions under domestic and international law, including whether targets are combatants, the availability of capture, and the need for oversight and accountability. The exchange between the two senators underscores how those debates can play out within the Republican Party and on social media.

Neither senator immediately responded to requests for further comment beyond their posts. The incident follows growing attention in Washington to U.S. operations aimed at disrupting drug trafficking and criminal networks in the Western Hemisphere, and it is likely to rekindle discussion in Congress about the scope of military and law-enforcement authority in such operations.