The co-chairman of the Colorado Springs American Civil Liberties has resigned after being criticized for a Facebook post that said to supporters of Donald Trump: “If you are voting for him, I will have to shoot you before election day.”

The Daily Caller drew attention to the posts on Loring Wirbel’s Facebook account this week.

The ACLU of Colorado tweeted Friday that it “has accepted Loring Wirbel’s resignation as chapter representative to our state board.”

“The ACLU of Colorado does not condone the recent personal Facebook post of regional volunteer Loring Wirbel,” the group said.