Grant Tudor and Justin Florence at Protect Democracy assess the legality of a potential presidential "self-pardon," including the relevant limits on the pardon power. https://www.lawfaremedia.org/article/the-self-pardon-question-is-coming
The current situation has shown that the only way we will know the accuracy of the statement "A President cannot pardon themself," is if a President does so. Since there have only been two modern Presidents that have placed themselves in a position where such a pardon would be necessary, and both declined the opportunity, we will have to wait for a future President to attempt it.
I have no doubt that should D J Trump regain the Presidency, he will be the first to do so.
Only then we will see the extent of the power tested in the Supreme Court; a Supreme Court that has shown itself to be thoroughly corrupt.
@PeterLG that's not quite how the US works.
It's not really a question about whether a president can pardon himself, but rather whether such a pardon would be respected, and that's a question that may change over time and by situation.
It's just how the US system works, and I believe @lawfare itself covered this a while back.
