Trevor Potter (born October 24, 1955) is a lawyer, former commissioner and chairman of the United States Federal Election Commission. He is the Founder and President of the Campaign Legal Center, a nonprofit organization which works in the areas of campaign finance and elections, political communication and government ethics. A Republican, he was the General Counsel to John McCain's two presidential campaigns. Potter is a vocal critic of unlimited corporate spending and dark money in politics allowed by the Citizens United v. FEC ruling.He has been described by the American Bar Association Journal as "hands-down one of the top lawyers in the country on the delicate intersection of politics, law and money".