A lawyer for former White House Chief of Staff Mark Meadows says his client will defy a subpoena from a House committee that is investigating the Jan. 6 Capitol insurrection, a move that is likely to trigger a contempt vote against the former Republican congressman.

The Jan. 6 panel had given Meadows until Friday to comply with the September subpoena and appear for a deposition, but his lawyer said that his client has a “sharp legal dispute” with the committee as former President Donald Trump has claimed executive privilege over the testimony.

“Legal disputes are appropriately resolved by courts,” said Meadows’ lawyer, George Terwilliger, in a statement Friday morning. “It would be irresponsible for Mr. Meadows to prematurely resolve that dispute by voluntarily waiving privileges that are at the heart of those legal issues.”

Meadows’ refusal to comply comes amid escalating legal battles between the committee and Trump, who has claimed privilege over documents and interviews the lawmakers are demanding.