The current Democrats in Congress are dishonorable. They are worse than Republicans. Republicans may pretend to be a lot of things (straight) but for all of their venal weaknesses and illegalities, they're not very good at hiding their motives. The Democrats, on the other hand, portray themselves as the shining knights of protection but confronted with true danger, they fold up like a damaged accordion.
I you ask me, it's a far bigger betrayal when the good guy turns out to be a coward than when the bad guy turns out to be a bad guy.