WASHINGTON (Reuters) -Democratic Senator Richard Blumenthal on Monday asked U.S. Secretary of State Marco Rubio to answer questions about a reported plan to spend $400 million to purchase armored versions of Tesla Cybertrucks to transport diplomats. Blumenthal said the State Department has publicly stated the contract was planned during the Biden administration and the Trump administration canceled it. "The question has been raised whether, after significant public blowback, the Trump Administration created and backdated government documents to make it appear that the idea to spend $400 million in taxpayer money on Tesla Cybertrucks originated with the previous administration," Blumenthal wrote.