Obama didn't simply come out swinging. He also made the single most persuasive case for government intervention in decades in the final section of his speech. He put an end to the Reagan era dogma that America's biggest foe is government itself. With this speech, Obama has begun to fulfill the promise of his presidency. Obama, you could say, found his sea legs. He's ushering in a fundamental philosophical shift that could set the stage for several decades of a revived and modern liberal movement, while the right spins off into noisy irrelevance.