Under the headline “More Elderly Humor From Robert Gibbs,” Time's Michael Scherer writes:

This morning on MSNBC, [Obama spokesman Robert] Gibbs returned to the make-fun-of-the-elderly joke well. “Just yesterday, John McCain said we shouldn't fix blame. He took a breath and then fixed blame. He said the fundamentals of our economy are strong, and he flip-flopped. He opposed the bail-out of AIG, and then he supported it. This guy zig-zags. Look, if he's driving a car, get off the sidewalk.” (Video here.)

Hardy Har Har. Back in the 2004 presidential election, one in four voters was 60 years old or older. I am sure they find these sort of jokes from Obama's top message man hilarious. Just hilarious.

Uh ... if you “zig-zag” while driving, you'll likely end up on the sidewalk. That doesn't have anything to do with age; it has to do with most roads not being zig-zag shaped.

At the beginning of Scherer's post, he referenced a comment by Gibbs about McCain's failure to remember how many houses he owns as another example of Gibbs criticizing McCain's age. But Gibbs didn't say anything about McCain's age in that comment, either. He made a comment about McCain forgetting how many houses he has because McCain forgot how many houses he has.