Plausible hypothesis.

But my experience in Canadian politics is that these machinations are hard to predict how they will turn out. There might a good plan beforehand, but the old "unintended consequences" too often rears its ugly head.

A more likely hypothesis is that raw emotion from all the pressure and confusion made the call for Mr. Biden to step aside. And if you have seen his recent media performances, one side of his mouth is drooping, a sign of a small stroke. That might be the bigger reason for where we are today.

Both parties have set up their leadership contests such that the winner is known before the leadership convention starts. The year 1968 was the reason.

Harris was the best option not to have a contested convention.

Any thoughts on Mr. Trump's ear?