Who matters now?

Officially, the Governator rules only over the state of California. Unofficially, Schwarzenegger is setting the national agenda on climate change and universal healthcare. Once the butt of late-night jokes, the five-time Mr. Universe is transforming the Golden State into a green giant, shrinking its carbon footprint by establishing a regional "cap and trade" system for greenhouse-gas emissions. As for medical care, Schwarzenegger is pushing an ambitious plan to extend healthcare coverage to the uninsured.

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Tell us who you think matters now -- and why