I don’t understand why any Democrat would complain about a fire-brand progressive debating a billionaire. The concern about Trump is that he will have free reign to debate Clinton without having to defend his history of profiting off of the suffering and mistreatment of others. Do you really think Sanders will use that as an opportunity to attack Clinton? He’s shown whenever he is directly asked that he believes any Democrat is worlds better than the Republican alternative. I know people are bitter that Sanders is still campaigning but regardless as to whether you’re on the Hillary or Bernie side of that debate I think its great news that we are finally going to have someone (who is intelligent) actually rebutting some of the ridiculousness that comes from Trump.