Can Trump be disqualified from the presidency?

Congress cannot disqualify Trump from serving as president again.
The impeachment videos: Raskin’s questionable tactics

The doctored anti-Trump videos did not meet any reasonable standard of admissibility.
Prosecutors tried to make opinions impeachable

In an impeachment trial, if the House managers claim that the accused’s alleged lies form a basis for conviction, then they have the burden of proving—by clear and convincing evidence—that the statements were, in fact, lies.
The unfair procedures in the Trump impeachment

To ensure fairness, the prosecuting House managers must demonstrate decisively (1) that the election was fair, (2) that Trump had no reasonable grounds for believing otherwise, and (3) that he had a corrupt motive for lying.
What you need to know about the lawyers’ arguments on impeachment

Whatever you may think of Trump’s speech, the evidence shows, and the prosecutors implicitly admit, he did not commit a crime. This creates some problems for the prosecution.
Does the Constitution allow impeachment of an ex-President?

You can see how the evidence goes in both directions.
New article relevant to the 2020 election, amendments, & much more!

The Constitution’s “federal functions” are almost totally overlooked in law school courses. Yet they are hugely important.
The solution is a convention of the states: 5th of a five part series

By using the Constitution’s convention procedure, we can enact the reforms necessary to save the country—and we can make them permanent.
How state legislatures can break the power of corrupt big-city politics in presidential elections -4th in a series

District voting for presidential electors in [key swing] states would . . . isolate corruption to particular electoral districts;
Saving America and election integrity: 3rd in a series

2020 election irregularities: “For the survival of the republic, we cannot sweep such evidence under the rug.”
Saving America and election Integrity: 2nd in a series

Now, if these characters don’t understand even the fundamentals of their jobs, how can we expect them to know enough to govern health care? Or education? Or the environment? Or defense, commerce, or any of the other activities they purport to regulate?
Don’t let them divert us from ensuring electoral integrity!—1st in a series

I’ve been in and around politics for over 50 years. I know a diversion when I see one.