I'm not gonna take the time to look up the official definition of "pathological liar," but I'm pretty sure it's someone who can't stop doing it, and to whom the idea of lying isn't bothersome in the least. Whatever the definition, unless there's a term for a form of lying that's even worse, then Mitt Romney is the poster child. I think it's now at the point where it's safe to say you can't believe a single thing he says. Not one damn thing. The default assumption of any thoughtful person, regarding Mitt Romney, ought to be if he said it, it's a lie.
I refer to a revelation about his having claimed special friendship with Bibi Netanyahu. When he first said it, I was surprised, but, also, impressed. And a little worried. Partly because I think Bibi is way too militant and is doing harm to Israel; but mostly because The Rominee as much as admitted that, when it comes to Israel, he'd call his BFF and say, tell me what to do and I'll do it. Literally, pretty much. In one of the debates: ROMNEY: "I'd get on the phone to my friend Bibi Netanyahu and say, 'Would it help if I said this? What would you like me to do?'"
“Israel’s current prime minister is not just a friend, he’s an old friend,” Mitt Romney, with whom Netanyahu worked at the Boston Consulting Group in the 1970s, told aipac in March. (Romney, Netanyahu suggests, may have overstated the tie. “I remember him for sure, but I don’t think we had any particular connections,” he tells me. “I knew him and he knew me, I suppose.”)
Which is sort of in conflict with an interview with The New York Times: ROMNEY: "We [Mitt & Netanyahu] can almost speak in shorthand. We share common experiences and have a perspective and underpinning which is similar."