Senility, incoherent babbling, Pavlovian urges to grope women, decades of corruption, hilariously incompetent offspring, semi-conscious servility on behalf of corporate plunder, unaware of events after 1985... there is more that unites Trump and Biden than divides them.
In Biden, God is conducting an experiment on #resistance types to determine whether or not they are self-aware. It's not looking good so far.
The difference though is that while Trump has a base, even Biden's own wife can't name a reason why he should be allowed to run anything.