Either John McCain really hates gay people, or maybe he’s just going senile. First, the guy abandoned virtually every principle he had when running for president, including pulling a flip-flop on almost every major issue where he did not already take a hard-right stance.

However, the man’s inability to stand by his word came to a pinnacle with DADT, with him first saying that he would respect whatever the generals said, then that he needed a study, then that the study wasn’t the one he wanted, and then we better study this some more. The definitive epitome of moving goal posts. This despite DADT being pretty much inevitable, something long overdue in the military; I mean, really, it’s degrading to the soldiers to assume that they would be decimated by something that virtually every other profession deals with so easily that no one even notices anymore.

And today:

If John McCain gets any more hostile toward his Senate colleagues, they might consider having him go through the metal detector before he enters the Capitol.

Saturday’s debate on the repeal of the “don’t ask, don’t tell” policy was only half an hour old when the Arizona Republican burst onto the floor from the cloakroom, hiked up his pants and stalked over to his friend Joe Lieberman (I-Conn.) and Senate Majority Whip Dick Durbin (D-Ill.). Ignoring Sen. Jim Inhofe (R-Okla.), who had the floor, McCain hectored the men noisily for a few moments, waving his arms for emphasis.

When McCain finally stormed off, Durbin shook his head in exasperation and Lieberman smiled. A minute later, McCain returned – he had apparently remembered another element of his grievance – and resumed his harangue.

It’s not like the man has been quiet otherwise. He’s become one of the most smugly partisan politicians out there. Either he’s found his niche for staying popular in his party–abandon all principles and reason to get what you want–or maybe he’s taken the mantle of Sore Loser to before un-reached heights and just wants to destroy anything Obama might sign which might make it look like he’s getting stuff done. Which, of course, would just bring him in line with most of the rest of his party.