If you listen to the radio, watch tv or open a newspaper, you've probably come across at least one ad from BP. Perhaps you've seen or heard a political ad recently, attacking President Obama for his response to the oil crisis.

It's costs 75 cents for a copy of the newspaper- it's costing BP a reported 50 million dollars for these full page ads, radio spots, tv commercials and pr on the web.

BP isn't the only organization spending a lot of ads. Now, the RNC has an attack ad.