Klein points out that no only is McCain a liar, he's a serial liar of unprecedented proportions in a presidential campaign.
"Worse than the lies have been the smears. McCain ran a television ad claiming that Obama favored "comprehensive" sex education for kindergartners. (Obama favored a bill that would have warned kindergartners about sexual predators and improper touching.)
The accusation that Obama was referring to Sarah Palin when he said McCain's effort to remarket his economic policies was putting "lipstick on a pig" was another clearly misleading attack — an obnoxious attempt to divert attention from Palin's lack of fitness for the job and the recklessness with which McCain chose her. McCain's assault on the "élite media" for spreading rumors about Palin's personal life — actually, the culprits were a few bloggers and the tabloid press — was more of the same.
And that gets us close to the real problem here. The McCain camp has decided that its candidate can't win honorably, on the issues, so it has resorted to transparent and phony diversions."