Former U.S. President Donald Trump announced that two trial lawyers will take over representing him at his upcoming impeachment trial after parting ways with his previous defense team.

Attorneys David Schoen and Bruce L. Castor Jr. will head his impeachment defense, the former president announced Sunday evening. His previous attorneys, including Butch Bowers of South Carolina, departed this weekend, leaving the president without representation just over a week before his trial is to start.

Schoen has already been working with Trump and other advisers to prepare for the trial, and both Schoen and Castor agree that the impeachment is unconstitutional, Trump said in the release.