Palm Springs, California -At the front gates of the Rancho Las Palmas resort, a few hundred liberals rallied Sunday against "corporate greed" and polluters. They chanted for the arrest of billionaires Charles and David Koch, and their ire was also directed at the other free market-oriented businessmen invited here by the Koch brothers to discuss free markets and electoral strategies. Billionaires poisoning our politics was the central theme of the protests. But nothing is quite as it seems in modern politics: The protest's organizer, the nonprofit Common Cause, is funded by billionaire George Soros. Common Cause has received $2 million...