Here’s the problem, people don’t vote down ticket, and they only vote every 4 years instead of every 2 years.
In no small part due to DNC suppression and interference. This is why people say the neoliberals need to be allowed to fail until they have no option but to tlstop suppression tactics (or leave and go to the GOP where they belong)
The base cannot reform the DNC they can only starve the power structure until it's desperate enough to stop sniping progressives. It worked after Clinton's failure, we got a ton of progressives in office after that.