Trump cannot execute anyone. An execution at the federal level can only happen if someone commits a federal offense for which the the death penalty is an option (which I think is limited to murder?), the person is charged, tried, convicted, and lost any appeal. The only involvement Trump could have in that process is trying to instruct the DOJ to prosecute someone committed murder. Giving any credence to this looney proposition is lolo.
What's ironic is how Biden has used the DOJ to try and imprison his political opponent for life. And that Trump's DOJ prosecuted his own people while Trump was POTUS.
Either I was not clear, or you misunderstood what I wrote. I did not say Trump could execute anyone. What I suggested was he could influence Congress to do that. Obviously, it would have to be a federal offense since Congress has no say in State laws regarding the death penalty. More importantly, I was kidding. I cannot imagine Trump would ever be awarded that much power. He may be very persuasive at times, but there are limits to what he can do. (except according to some folks including you when it comes to declassifying government documents where supposedly his powers are limitless). Not that he wouldn't try though.

Note the happy faces. I didn't want you to mistake my kidding or sarcasm with seriousness. I am in too good a mood today to be absolutely serious about these matters.
Now I must get ready for Thanksgiving dinner at my relatives home. Should be fun. My daughter indicated there would be about 20 guests in all. All of us family.