A law firm hired by the Washington, D.C., Council found “substantial evidence” that Democratic Ward 8 Councilman Trayon White violated council rules by using his office for financial gain.

White was arrested in August on a federal bribery charge that alleged he accepted $156,000 in cash in exchange for agreeing to pressure two D.C. government agencies to renew or extend an associate’s contracts and grants, according to the federal indictment in September.