Bernie Sanders is a millionaire.
He leads Democratic polling for 2020.
He even drew a big audience on Fox News Monday.
Some Democrats really don't like that news.
How, some Democrats are beginning to ask, do they thwart a 70-something candidate from outside the party structure who is immune to intimidation or incentive and wields support from an unwavering base, without simply reinforcing his “the establishment is out to get me”’ message — the same grievance Mr. Trump used to great effect?