Hkmp5sd: "It's all on their shoulders and they either stand buy their constituents or go find another job."
Wrong answer. Demonstrate to them how it is in their best interest to vote against a renewal of the AW ban, how they can convince an overwhelmingly anti press that military look-alike semi-autos aren't full auto, that Evil Black Rifles don't "spray bullets," that they aren't more high-powered than a 30-06 hunting rifle, that they don't mow down helpless children with a single pull of the trigger, that they aren't the Holy Grail of guns sought by terrorists at US gun shows (with or without background checks), that Evil Black Rifles are not the root of all firearms-related problems here in the US...
In other words, give them the political cover they need to buck a media onslaught. If you can figure out how to do that, your legislator has his behind covered. If you can't, don't expect him to go out on a limb for you. You are a constituent. And there's 1000 constituents of his who've been programmed by the press to react when the Pavlovian bell rings.
Tall order, isn't it?