No, the ad said it proposed "comprehensive sex ed" to kindergardeners, capped with: "learning about sex before learning to read?"
It's not completely untrue -- Obama did support the bill to teach K-12 age-appropriate sex ed. So the argument is by omitting the -12 and the "age-appropriate" part, did McCain's camp lie? Or just try to twist things to make it sound bad? Either way, it's NOT the truth. Or else your definition of "truth" is a bit crooked.
As writers, we all know what kind of effects a specific word, placed at specific places, out of context, really mean. It's meant to deceive. Plain and simple.
Come on, you wanted me to be fair, and I try to be. It's time that you try to be fair as well. McCain's ad is not just going for the extreme. He tries to deceive.
The thing is, one can choose to believe what he believes. If you think McCain is fair and telling the truth, then you can make yourself believe. If you believe Obama is a jerk, then anything he says is going to grate on you. And vice versa.