The Controversial Power of Presidential Pardons.

Legal experts are divided on whether a US president can pardon himself, as the Constitution is silent on the matter. While the president has broad power to pardon federal crimes, he cannot pardon state offenses or cases involving impeachment. The Supreme Court has ruled that a pardon can be used for acts that have taken place, even if the courts have not yet taken action. If a president were to attempt to self-pardon, the matter would likely go to the Supreme Court, but it would be difficult for someone to challenge the pardon in court.