This is convincing. Every Dem is going to get asked about the shiny new thing (or old tweet) from a left-wing Dem candidate. I do think the incentives are different for someone running on same ballot as, say, Abdul (Hilary Scholten) and some candidate just being tied to the left (Cait Conley).
Aaron RuparNew in PN: Moderate Democrats have a choice to make "They can spend the next three months reinforcing Republican messaging about their party & making it less likely Dems take power. Or they can put the 'battle for the soul of the party' off for a while and do what they can to help their party win."