If Bernie does not drop out before the next debate (less than a week away), don't be surprised if the DNC finds an excuse to cancel the debate (most likely "fear of the Corona Virus.") They cannot afford to allow Biden to appear on live TV, unscripted, for two hours. There won't be 6 or 7 other candidates for him to hide behind. Even with "softball" questions, the potential for some very bizarre ramblings by Biden is very high.
I thought it was interesting that they wouldn’t let Tulsi participate. Only three candidates left. They still have a woman (from Samoa!) who could represent some diversity. And she could eat up a third of the time, taking pressure off Joe.
But Tulsi would clearly be the only normal person on the stage. She’s too dangerous. They excluded her. So now Joe has to carry half of a two hour unscripted debate.
I agree with you: they will cancel because of the virus and save Joe from embarrassment.