I don't think any of the conjectures in the article are actual loopholes, because exploiting them would be inhibited by the checks and balances built in to the

I don't think any of the conjectures in the article are actual loopholes, because exploiting them would be inhibited by the checks and balances built in to the Constitution. If any of them were exercised, it would have to be done with the cooperation of substantial majorities of elected officials, and thus presumably with considerable popular support. Since the Founders envisioned that the Constitution could and perhaps should eventually be nullified by popular action, I think that if such a thing happened it would not follow that it has loopholes. Here's an actual loophole: The Vice President, as President of the Senate, could prevent the Senate from conducting any business, including passing laws such as budgets, and thus could bring the federal government to a standstill. The VP could threaten to do this and blackmail other elected officials to do as commanded, or else. The Vice President couldn't be removed, because all impeachments are tried in the Senate, and as President of the Senate the VP could block all such proceedings. "The power to destroy a thing is the absolute control over it."