Marc A. Thiessen (born 1967) is an American author, columnist and political commentator, who served as a speechwriter for United States President George W. Bush (2004–2009) and Secretary of Defense Donald Rumsfeld (2001–2004).
Thiessen's articles have appeared in the Los Angeles Times, National Review, The Wall Street Journal, The Washington Post, The Weekly Standard, USA Today and other publications. He has also appeared on Fox News, CNN, NPR, and other media outlets. In its January 11, 2010 issue, The Daily Telegraph named Thiessen number 97 of the "100 Most Influential Conservatives in America".
Source Wikipedia http://en.wikipedia.org/wiki/Marc_Thiessen