U.S. DOGE Service leader Elon Musk on Monday called Sen. Mark Kelly (D-Arizona) — a decorated Navy pilot and former NASA astronaut — a traitor in a post on X after the senator visited Ukraine and expressed his support for the country in its war with Russia.

Elon Musk on Monday accused Sen. Mark Kelly of being a “traitor” after he visited Ukraine and said the U.S. should keep supporting its war against Russia.

Democratic Senator Mark Kelly, who is a former US Navy pilot, had posted a thread on X about his recent trip to Ukraine, highlighting the role of America in helping the nation in its conflict with Russia.