For the first time in American history, a major political party devoted a substantial portion of its national convention to attacking grassroots organizing.

Speaking Wednesday at the Republican National Convention, former New York Governor George Pataki sneered, "[Barack Obama] was a community organizer. What in God's name is a community organizer? I don't even know if that's a job."

Then former New York Mayor Rudy Giuliani delivered his own snickering hit job. "He worked as...