 And the Supreme Court said, you got to be kidding. The president can't be sued in civil court when he or she leaves office because she could spend the whole time in the aftermath of the White House defending such lawsuits. Donald Trump's making a very similar argument. If I'm engaged in official acts during a presidency, and those are the acts that become the basis of a criminal prosecution, I'm immune because I'm doing my job. You can't prosecute me for doing my job.