Thread is the very example of this. Most of the criticism surrounding Bernie Sanders was with regard to his failed strategy in his presidential run.
I don't recall there being much outcry over Bernie Sanders actually holding up popular dem legislation, negotiating in bad faith, or sabotaging the party as a senator.
In fact, even Nap has pointed out that Bernie usually votes the party line despite his public posturing or his own personal ideals.
Trust and believe if Manchin tried to run for POTUS as a dem he'd get much worse treatment.
Ironically, must of us view him as a DINO. Thread is bad faith.
democrat voters repeatedly criticized Bernie for not officially becoming a democrat
manchin is a democrat
theres a portion of democrat voters who would vote for manchin or not vote at all rather than vote for bernie if heads up in a primary
thats problematic