Attorneys for a Wyoming-based free market think tank broadened the scope of their lawsuit against the Federal Election Commission on Monday. Wyoming Liberty Group (WyLiberty) attorneys filed a motion for preliminary injunction in Free Speech v. Federal Election Commission, a case that began in Wyoming federal court last month. The motion calls for a nationwide injunction against campaign finance regulations that require grassroots groups to register and report with the federal government just to criticize it, according to a news release from the group. Last month’s lawsuit asked for a preliminary injunction on behalf of three Wyoming residents who formed a grassroots organization called “Free Speech.” Since the Free Speech case began, it has grown more significant, said Stephen Klein, staff attorney for Wyoming Liberty Group.