It's by the design of the Democrats, though I think our current situation is an unintentional cascade effect.

It's the result of one of the oldest election strategies in the world that remains incredibly popular for one simple reason: it's easy and it works. "Vote for me because I'm not the other guy" is a much easier policy to convince people on than actually having any policies of your own.

For many years now Democrats all over the country have been funding the campaigns of the most unhinged and extremist of their opponents to set themselves up for an easy win - there was even a lady who wrote a book about her doing it, only to lose to that same extremist in the very next election.

And that's why we find ourselves in the situation that we're in. Because the Dems keep thinking that they can court some mythical moderate Republican voting block by propping extremists up as the nominees. But that doesn't exist because the Republicans have always been voting against Dems rather than for people they like. Republicans don't care if the nominee is Bush, Biden, Putin, or Stalin himself, risen from the grave to finally put an end to capitalism. So long as they have an R next to their name instead of a D, that's who they're voting for.