Saying "He is also a lefty. I am not," Christopher Buckley endorses Obama.

Why would a conservative back Obama?

I am a small-government conservative who clings tenaciously and old-fashionedly to the idea that one ought to have balanced budgets. On abortion, gay marriage, et al, I’m libertarian....

But having a first-class temperament and a first-class intellect, President Obama will (I pray, secularly) surely understand that traditional left-politics aren’t going to get us out of this pit we’ve dug for ourselves. If he raises taxes and throws up tariff walls and opens the coffers of the DNC to bribe-money from the special interest groups against whom he has (somewhat disingenuously) railed during the campaign trail, then he will almost certainly reap a whirlwind...

Obama has in him—I think, despite his sometimes airy-fairy “We are the people we have been waiting for” silly rhetoric—the potential to be a good, perhaps even great leader. He is, it seems clear enough, what the historical moment seems to be calling for.

By comparison:

But that was—sigh—then. John McCain has changed.... A once-first class temperament has become irascible and snarly; his positions change, and lack coherence; he makes unrealistic promises, such as balancing the federal budget “by the end of my first term.” Who, really, believes that? Then there was the self-dramatizing and feckless suspension of his campaign over the financial crisis. His ninth-inning attack ads are mean-spirited and pointless. And finally, not to belabor it, there was the Palin nomination. What on earth can he have been thinking?

His positions change, and lack coherence....

Is Buckley not right?