A Michigan lawmaker leading the investigation into the 2020 election threatened Dominion Voting Systems CEO with a subpoena if he doesn’t appear before his committee voluntarily.

State Rep. Matt Hall, a Republican who chairs the Michigan House Oversight Committee, said in a Dec. 7 letter obtained by The Epoch Times that he sent a missive last month asking Dominion CEO John Poulos to testify before the committee.

“I have not received an answer to my request. I am writing again to request your appearance before the House Oversight Committee so that we can further investigate Dominion’s role in the election,” Hall wrote to Poulos in the new letter.

The representative said there have been a number of claims and accusations regarding Dominion’s software and the results of the election and that Poulos could help lawmakers and voters better understand the election software.