House Democrats sent a formal request for John Bolton to testify as part of the impeachment proceedings against President Trump.
Bolton, who was Trump’s national security adviser until his resignation in September, was sent a letter by House Democrats inviting him to testify on Nov. 7.
Bolton’s name has been brought up in testimony from other witnesses, including Trump’s former Russia adviser Fiona Hill. Hill claimed Bolton had urged her to report any “wrongdoing” she had witnessed from the White House to the National Security Council’s attorney.
It’s unclear if Bolton will take Democrats up on their offer and testify, but his lawyers were reportedly in talks with three House committees leading the impeachment process last week.
Several members of the administration have refused to testify, including Vice President Mike Pence.
Bolton, however, does not have a solid relationship with Trump after leaving on rocky terms. He also reportedly called the president’s personal lawyer, Rudy Giuliani, a “hand grenade” waiting to “blow everyone up,” signaling he might be more willing to participate than Trump’s closest allies.
