Sen. Lindsey Graham continued to argue in a court filing Wednesday that a Fulton County subpoena for his testimony in the investigation into plots to illegally influence Georgia’s 2020 election results should be quashed or, at the very least, heavily limited in scope.Sen. Lindsey Graham continued to argue in a court filing Wednesday that a Fulton County subpoena for his testimony in the investigation into plots to illegally influence Georgia’s 2020 election results should be quashed or, at the very least, heavily limited in scope.