No, Trump cant pardon himself. The Constitution tells us so.

[Voltaire2]

9. It is a weak argument.

"The Constitution specifically bars the president from using the pardon power to prevent his own impeachment and removal. It adds that any official removed through impeachment remains fully subject to criminal prosecution. That provision would make no sense if the president could pardon himself."

What the constitution actually states is simply "he shall have Power to grant Reprieves and Pardons for Offenses against the United States, except in Cases of Impeachment."

The fact that the constitution carves out impeachment from the pardon power argues against the theory that the president cannot pardon himself. In fact the explicit carve out only makes sense if "self pardon" was implied by the pardon power.

Absent impeachment, this ends up in the Supreme Court. Don't count on the "no self pardon" argument prevailing.