House Minority Leader Kevin McCarthy posted on social media Friday a letter from his lawyer signaling he would not comply with a subpoena from the House select committee investigating the Jan. 6 riot at the Capitol.

The move comes as no surprise, as McCarthy (R-CA) has been a vocal critic of the panel since its beginning. He co-authored this week an op-ed in the Wall Street Journal with Rep. Jim Jordan (R-OH) this week, arguing that “for House Republican leaders to agree to participate in this political stunt would change the House forever.”

In a letter to the panel’s chairman, Rep. Bennie Thompson, McCarthy’s lawyer Elliot Berke wrote that the committee is “clearly not acting within the confines of any legislative purpose. Its only objective appears to be to attempt to score political points or damage its political opponents — acting like the Democratic Congressional Campaign Committee one day and the Department of Justice the next.”