Fox News’ mega-ratings winner Bill O’Reilly defends Democratic Presidential candidate Sen. Barack Obama against charges from GOP Presidential candidate Sen. John McCain’s camp that Obama talk about a pig with lipstick was a reference to Republican Veep candidate Gov. Sarah Palin. O’Reilly also takes (another) swipe at NBC News — and warns McCain about the impact this kind of campaigning could have on independent voters:

This signals that the charge — although it may still be effective — has now jumped the shark. (Or the pig..)