The candidates are:
Biden the dream candidate of the GOP
More or less open communists like Berne
Various oddballs
The unknowns
blasts from the past like Gore
This will cause damage all the way down to animal control elections but how much?
Sigh..and queue the latest, "the Democrats are doomed" prognostication. Except they aren't. And all I need to know this is to see the reactions of the people who were on Bernie Sanders and Pete Buttigieg's town halls on Fox News. They talked about issues (including healthcare) that resonated with their audience. And those same issues are important to Trump voters when you strip away all of President Loudmouth's other antics they support. So the issue becomes can the Democratic party nominee convince enough of the independent voters in the 5 or 6 key swing states to tip the election in their favor?
In the down ballot races, I expect the trend of the 2018 midterms to continue. The House mostly likely stays Democrat. The Senate comes down to 4 or 5 seats considered toss ups.
Maybe you're right, and people will believe all the nostrums and panaceas that Quacks like Crazy Bernie and Mayor Petey spew about.
But I have my doubts. Most people are pleased at America's respect abroad, the way we are whacking Archterrorists like al-Baghdadi and Soleimani, what President Trump has done with the economy.
They don't want to go back to the days of malaise in economy, and subservience to Eurotrash royalty abroad. They don't want open borders, and reparations, and long queues to be seen by the death panels. They don't want 70% tax rates, they don't want to lose their jobs, IMHO.
Maybe I'm wrong, we'll see soon enough.