Judge Tanya Chutkan grilled former President Donald Trump’s defense attorneys on Thursday at a hearing about their proposal to move forward with the election interference case after two Supreme Court rulings installed a fresh set of hurdles in it.

Chutkan, an Obama appointee, was at times incredulous as she pressed Trump attorney John Lauro on why the case could not move forward in a streamlined fashion that involved addressing the high court’s presidential immunity decision and the former president’s other concerns about the case simultaneously.