SAVANNAH, Ga. AP – Attorneys argued Tuesday before a Superior Court judge about whether U.S. Sen. Saxby Chambliss has legal immunity from being questioned in a lawsuit against Imperial Sugar over the deadly explosion at its Georgia refinery.

Savannah attorney Mark Tate, who represents families of six employees killed in the blast and five injured workers, wants to ask Chambliss if the company sought his help to discredit a whistleblower and discourage workers from suing.