volunteer henchman

A cynical coward of wantonly sadistic and sub-human moral character who is always desperate to participate in easy victories of any sort. He or she can be seen in the wild slithering out from under some rock to immediately and automatically take the side of all obvious predators and victimizers, against any of their "whining loser" victims.

Can be republican or democrat, because they're both basically the same thing nowadays anyway.

Whatever you do, don't let Duane hear you talk about what your company did to you; all he'll do is call you a "whiner" and paint you as some kind of spoiled and "disgruntled ingrate". That's just the way he is -- he's a volunteer henchman.