"The President enjoys no immunity for his unofficial acts, and not everything the President does is official. The President is not above the law. But Congress may not criminalize the President’s conduct in carrying out the responsibilities of the Executive Branch under the Constitution. And the system of separated powers designed by the Framers has always demanded an energetic, independent Executive. The President therefore may not be prosecuted for exercising his core constitutional powers, and he is entitled, at a minimum, to a presumptive immunity from prosecution for all his official acts. That immunity applies equally to all occupants of the Oval Office, regardless of politics, policy, or party."
"Certain allegations—such as those involving Trump's discussions with the Acting Attorney General—are readily categorized in light of the nature of the President's official relationship to the office held by that individual. Other allegations—such as those involving Trump's interactions with the Vice President, state officials, and certain private parties, and his comments to the general public—present more difficult questions."
They also state later that "Because the President cannot be prosecuted for conduct within his exclusive constitutional authority, Trump is absolutely immune from prosecution for the alleged conduct involving his discussions with Justice Department officials."
