Benjamin A. Schupmann at the Oxford University Press Blog:
That a popular candidate could be disqualified from running and removed from the ballot might, at first glance, seem at odds with the very idea of democracy. For that reason, despite his evident role in instigating an insurrection, many Republican senators demurred and chose not to impeach former President Donald J. Trump on 13 January 2021. There was no need, they thought. The American voters had already passed judgment. Trump would now fade away.
Three years later, with Trump still fully in control of the Republican Party and poised to regain the Presidency, the US Supreme Court decided per curiam that Courts cannot declare a candidate ineligible for public office under the “insurrection clause” of the Fourteenth Amendment. Moreover, the Supreme Court’s scheduled hearing of Trump’s executive immunity claim seems intended to guarantee that the federal January 6 case will occur too late to influence or interfere with the 2024 US Presidential Election.
In these and other cases, we can see that, despite the existence of constitutional mechanisms to disqualify antidemocrats from obtaining power, elected representatives, judges, and other officials are reluctant to use them.
More here.