Pardon my cynicism, but this was just a trial balloon to see if the notion moved the voter needle in Trump's favor. That explains the weeklong delay before he cancelled it. The execution is in December. If the whole thing was for real, they would've waited until after November 6th to announce it.
nbcnews.com
Trump says government won’t livestream execution of Fort Hood shooter Nidal Hasan
Family members of Hasan’s victims will be able to watch in person, Trump said, nixing a plan announced by Defense Secretary Pete Hegseth to make the execution widely viewable.