Maybe I made a mistake by allowing AdSense

Last week I decided to try to make a few bucks from this blog by allowing Google AdSense. I've had two politically-oriented posts which clearly indicate that I'm a liberal Democrat and opposed to the the worship of markets. Yet I'm getting ads urging people to urge Senator Bayh to vote against environmental legislation and the regulation of banks. I'll keep AdSense on for a while, but if my liberal blog is going to become a platform for right-wing nuts, I'll have to forgo the money.