Who is the foremost practitioner of Saul Alinsky's tactics in today's world?

After finishing reading Alinsky's Rules for Radicals I Googled Saul Alinsky and saw that he died in June, 1972, which was the year following publication of the book. Barack Obama was eleven years old that year! The way Rush Limbaugh makes it sound, Alinsky and Obama were buddies! Don't get me wrong, I think Rush Limbaugh is the foremost practitioner of Saul Alinsky's tactics in today's world. Glenn Beck is a close second. Glenn and Rush both have profound respect for middle class America. Alinsky did not, but he realized (and said so in his last chapter) that the best hope for America would be if someone could organize middle class America. Barack Obama organized middle class America to vote for him! Alinsky was all about organizing people to empower people, not himself. He wanted people to be active participants in the affairs of their country.