Paul Krugman gets it, even on topics outside his area of expertise. But that’s not too surprising, because the tactics employed by denialists and apologists really don’t change much:
Think about climate change. You have various right-wingers simultaneously (a) denying that global warming is happening (b) denying that anyone denies that global warming is happening, but denying that humans are responsible (c) denying that anyone denies that humans are causing global warming, insisting that the real argument is about the appropriate response.
What has changed is how effective wingnuts have become at flooding the zone with this crap and how amazingly fast their memories fail when ideologically convenient. They can cook up the most ridiculous narrative and inject it into the national dialogue as a legitimate idea like nobody’s business. But they’re able to do that in part because they don’t have to play by the same rules they impose on everyone else.
It’s a given in their insular culture that the liar du jure rarely need worry about his or her past statements, no matter how recent or well documented, even if they crash head-on with the latest spiel. In fact, if the goal is to confuse and obfuscate, that’s a feature, not a bug.