It seemed to me like the entire goal of the west world themepark was to perfect the genetic memory of a clone, but as of that season 1 finale episode was unsuccessful. The same glitch the owner’s clone seemed to endure seems earily similar to Biden. How he seems kinda like the grumpy old basdard that he would have been if it were really him, but other times doesnt seem to remember what he is doing or saying. This behavior isn’t the same type of behavior that I am familiar with representing cognitive decline because it doesnt contain any rage or emotional outburst, just seems like a clone’s gentetic memory failure.

TLDR Biden is a clone, and cloning tech is not perfected.