Zizka says fight Gingrichian propaganda with Gingrichian propaganda:

How to Write Effectively About Our Bold President

Bob Somerby has collected evidence that “bold” is the RNC buzzword-de-jour. In case you want to avoid monotony and put a little variety into your crank-outs, here are some useful synonyms:shameless, blatant, bald-faced, brazen, brassy, impudent, nervy, audacious, and cheeky. In the proper context the phrases “unimitigated gall” and “brazen effrontery” can also be used to good effect.

To those I would add presumptuous, imperious, overweening and authoritarian.