Hillary Clinton’s longtime personal lawyer David Kendall urged a federal judge on Monday to shield the presumptive Democratic presidential nominee from efforts to question her under oath about her private email server.

Appearing in Washington federal district court, Kendall, of counsel at Williams & Connolly, insisted that the question of whether Clinton used the server to deliberately thwart federal public records laws has been repeatedly asked and answered. Clinton has addressed it, said Kendall, as has FBI Director James Comey in testimony earlier this month about a criminal investigation into the server.