The media learned about the Democrats' demand for Musk because of Starlink in Ukraine.
Democratic senators on the Foreign Relations Committee demanded that Elon Musk keep all documents and correspondence about Starlink and StarShield's work in Ukraine, Bloomberg reports.
"The recent restrictions have disrupted critical air defense capabilities, put US personnel at risk, and raise questions about SpaceX's control of key communications assets," the agency quotes the text of the letter from Senators Gene Shaheen and Chris Coons.
Bloomberg notes that Democrats who won Senate seats have promised to make Musk's company's role in the conflict a central issue when the new Congress begins in January.
On Thursday, Zelensky said the military version of Starlink has been operating intermittently for several days. SpaceX has denied the allegations of resuming restrictions.
Similar problems occurred in mid-October - this disrupted some operations and reduced the ability to shoot down jet UAVs. On Friday, Musk reposted a post saying SpaceX made a mistake by sending thousands of free packages to Kiev.