Six months later and this article didn't age well. Barring a legal or criminal issue, Trump WILL be the GOP nominee- he's running away with it now.

And NO president should announce they are only a one term president. That makes them an immediate lame duck with no clout.

It's also not only bad form to run a primary against a sitting president of your own party, it tends to actually weaken that president in the upcoming election by giving ammunition to the opposing party.