Lipstick on a Hypocrite?

I listened to the speech in its entirety. The phrase "you can put lipstick on a pig" is a reference to whether, or not, McCain truly seeks change (whatever that may be). McCain claims to seek change in government dealings and actions, yet voted within 90% of Bush Administration policy. If McCain's rhetoric is true, and he intends to induce change, it will be a facsimile of change. In other words, McCain will try to dress up a pig "Bush policy," by enforcing certain changes; despite his agreement with 90% of these policies. I suppose the 10% is analogous to the "lipstick." Whether, or not, you accept Obama's argument is one thing. To accuse Obama of slandering Gov. Palin is another.

Why the hell is this an issue? First people wonder how many houses McCain owns (which is eight, officially). Now they accuse Obama of calling Gov. Palin a pig.

Even IF Obama slandered Palin, so what? Didn't McCain do the same thing?