PHOENIX (AP) — A leader of the conservative group Turning Point Action resigned from the organization Thursday and dropped his bid for reelection to the Arizona House of Representatives after he was accused of forging signatures on his nominating petitions.

Republican state Rep. Austin Smith has in the past promoted disproven allegations of election fraud.

A complaint filed by a Democratic activist in Smith’s district says several petition sheets contain signatures “that appear to have been written by the same person” and says “many of those signatures bear a striking resemblance to Smith’s.” It includes affidavits from two voters whose names were included in Smith’s petition but say they never signed.

Smith cast the allegations as a coordinated attack by Democrats that was “silly on its face,” but said he would drop out to avoid racking up legal bills.