Trump has not been convicted of a federal crime, so he has no reason to pardon himself. He is, however, part of an investigation into his campaign's and his businesses' ties to Russia, and has explored the possibility.

He claims to have the power to issue a self-pardon. However, that power cannot be fully determined unless he (or a future president) attempts it.

Though a president's pardon power extends to federal crimes only, it is unclear about the ability to issue a pardon for a state crime if a pardon has been given for the same federal issue.

A presidential self-pardon does not immunize a president from impeachment.