Well not offically but he implies it in his article "Playing the 'Fair' Card:
The president who came to office with the most glittering array of experiences had served 10 years in the House of Representatives, then became minister to Russia, then served 10 years in the Senate, then four years as secretary of state (during a war that enlarged the nation by 33 percent), then was minister to Britain. Then, in 1856, James Buchanan was elected president and in just one term secured a strong claim to the rank as America's worst president. Abraham Lincoln, the inexperienced former one-term congressman, had an easy act to follow.
georgewill@washpost.com
This is one of the best arguments I have seen against the criticisms about Obama's lack of experience. And it comes from the Conservative George Will of all people - amazing.