Whither Joe Biden?

I know some of you think yesterday's devastating report is part of a canny Democratic plot to make him step down before the 2024 election. I don't. I think he's in trouble. And so are the Democrats.

We’ve all seen it. Maybe with a parent. Or grandparent. Even a spouse, for the unluckiest of us.

The slips are minor at first. The name of a friend forgotten, a birthday missed. An unsteady step. Then the problems become bigger and harder to miss. Memory gaps turn into sinkholes, missed steps into falls.

Eventually, the painful reality must be faced: Alzh…