Given the race of the Dems' candidates for the Presidency to see who can outbid each other with Free Shit, economy-destroying enviro proposals, multi-trillion-dollar social programs, gun-grabbing proposals, and more, I think Maher may be correct. I do not think the part of the Dem voter base demanding all that insanity is all that large. Shrilly vocal, but small. That could leave the, IMO, much larger less extreme part of the Dem base and independents (however many they may be) with a Dem candidate whose craziness they can stomach less easily than however they perceive Donald Trump to be.