The amendment says anyone who “engaged in insurrection or rebellion” against the Constitution after taking an oath to defend it is ineligible to hold office, and a long-shot effort to employ it is growing.
In the last state that tried this, it failed. From my understanding, he must first be found guilty of having committed a crime which disqualifies him. No matter how obviously guilty he is, this seems like a necessary first step, although IANAL.
The amendment was instituted in the wake of the Civil War, and was used several times against members of the Confederacy who never had a trial or conviction.
Just curious - If Colorado bans him for running (due to this, or something else entirely), but other states do not.. is he still able to run, but with the Colorado electoral points already lost?