It’s so obvious with the Democrats, anything conservative is going to be considered as ‘Extreme’. Even meek Mitt Romney was considered as ‘Extreme’, if you can picture that. The libs have overplayed that Shock & Awe card bigly!
BTW, "bigly" is actually grammatically correct, since it is an adverb modifying a verb (in this case "overplay"). Thus, adding the "ly" to the adjective "big" is 100% proper.