1st questions from Thomas: Where does immunity come from?
Justice Clarence Thomas opened questioning by getting to the heart of the case: where is the "source" of presidential immunity and how would the court come to decide what acts fall under that scope.
First, he asked Trump's attorney to be "more precise as to the source" of supposed presidential immunity.
John Sauer responded that it comes from the executive vesting clause of the Constitution.
Thomas then pressed how exactly the court would "determine what an official act is," to which Sauer said acts fall within the “outer perimeter” of a president's official duties.