I’ll just reproduce his letter, because I can’t say it any better than he did (since his official website is giving “Server too busy” right now, I’ll use The Weekly Standard’s copy):
Our economy is not creating enough jobs, and the policies coming out of Washington are a big reason why. Because of Washington, we have a tax code that is stifling job creation. Because of Washington, we have a debt crisis that is sowing uncertainty and sapping the confidence of small businesses. Because of Washington, our children are financing a government spending binge that is jeopardizing their future.