Attorneys for U.S. Sen. Saxby Chambliss are heading to court in Savannah to fight a subpoena by an attorney suing Imperial Sugar. Chatham County Superior Court Judge Herman W. Coolidge is scheduled to hear arguments from attorneys Tuesday.

Sen. Saxby Chambliss is fighting a subpoena by a Savannah attorney who’s suing Imperial Sugar on behalf of victims of the deadly February explosion at its Georgia refinery. Chambliss spokeswoman Michelle Hitt Grasso says federal law and Senate rules make the Republican senator immune from giving a deposition in the case.