I looked this up. Snopes has mixed review on it while Dr. Krauthammer denies ever making those statements. He does have a series of articles on Obama though:

http://www.washingtonpost.com/wp-dyn...042302983.html
http://www.washingtonpost.com/wp-dyn...041603379.html
http://www.washingtonpost.com/wp-dyn...040203287.html
http://www.washingtonpost.com/wp-dyn...030502951.html
http://www.washingtonpost.com/wp-dyn...022602908.html