On the trail, James Talarico, the Democratic Senate nominee, has increasingly gone after Mr. Musk, a critic of his who has given big to a group aligned with the Republican candidate, Ken Paxton.
Serhii Beskrestnov, a defense technology adviser to President Volodymyr Zelenskyy, said long-standing restrictions on the civilian system in Ukraine made such offensive use impossible.
Questions have persisted since last week about who ordered the interruptions to the Musk-made satellite internet system that Kyiv has relied on for years to counter Moscow's attacks.
A new study found Grok's AI overwhelmingly recommends Republican candidates while OpenAI's GPT favors Democrats, with the two AI models disagreeing in more than 90% of nearly 500 election races.
Ukrainian President Volodymyr Zelenskyy said Friday that service remained slow from Starshield, SpaceX's military-grade version of the Starlink satellite internet service.
Senators have warned the White House they will withhold confirmation votes until the administration ensures the restoration of communications capabilities used by Ukraine’s military.
Representative Brian Fitzpatrick, Republican of Pennsylvania and a former F.B.I. agent who worked on Russian counterintelligence in Kyiv, said he doubted the communication problems were accidental.
Musk's post came just a few hours after Anthropic promised to put 5% of its shares into a new "public benefit fund," which it intends to use to make "large donations to traditional nonprofits or direct distributions to specific populations" after its upcoming IPO.