Sen. Thom Tillis (R-NC) said Tuesday that he will not be supporting Ed Martin’s nomination to be Washington‘s top prosecutor, citing the interim U.S. attorney for the District of Columbia’s controversial statements regarding the Jan. 6, 2021, Capitol riot.

Tillis expressed concern about Martin’s nomination last week over “some of his public comments … particularly on Jan. 6,” but stopped short of declaring whether he was out on the self-described “Trump’s lawyer.” On Tuesday, he informed the White House that he would not support Martin.