Comment by skissane

I just realised another angle: 28 U.S.C. § 1442 enables state prosecutions of federal agents to be removed to federal court. Now, if Trump pardons the agent, does the federal pardon preclude that trial in federal court? To my knowledge, there is no direct case law on this question; there is an arguable case that the answer is “no”, but ultimately the answer is whatever SCOTUS wants it to be.