Tulsi is far to the left of Bernie in many ways. She has absolutely shown that she will fight the Establishment narrative while Sanders hits his knees and starts slobbing on command.
I have battled many Sanders supporters who are slaves to the Establishment narrative and will attack Tulsi and her supporters or say “she would make a good VP/SoS/etc” and she should “wait her turn”. While Sanders spews Russiagate and calls foreign leaders disparaging names while muttering platitudes about diplomacy. I doubt Tulsi would take a cabinet position in any warmonger cabinet, including Sanders. She would be forced to either follow orders against her will or resign.
Sanders supporters are just as bad as the DNC in keeping Tulsi from public view.