Sen. Lindsey Graham of South Carolina.Anna Moneymaker/Getty Images Justice Thomas briefly froze an order calling on Sen. Lindsey Graham to testify in a Georgia 2020 election probe. Last week, Graham filed an emergency application to block his testimony before an Atlanta grand jury. Graham was one of the lawmakers who asked the state's top election official to question absentee ballots, per a WaPo report. Supreme Court Justice Clarence Thomas temporarily froze an order calling for testimony for Sen.