Biden is so brazenly running a right-wing campaign and spurning any serious appeal to the social needs and grievances of the working class that Trump could win the election. This would be a devastating blow to the Democratic Party from which it would never recover, after the debacle in 2016.
To lose an election in the midst of a pandemic which has already cost 200,000 lives, under conditions where the president has been caught lying to the public in order to play down the danger, protect the stock market and reopen businesses at the expense of workers’ lives, where there are Depression levels of unemployment, and where hunger, homelessness and poverty are soaring, would discredit the Democratic Party for all time.
The greatest fear animating Sanders, and the Democratic Party as a whole, is the collapse of the party as an instrument to contain and divide working class opposition and protect capitalism from socialist revolution.
-- Jacob Crosse and Barry Grey, "Bernie Sanders offers left gloss to Biden’s right-wing campaign" (WSWS).