<Li> First President to have had a Secretary of Veterans Affairs . </Li> <Li> First President to serve as Chairman of the Republican National Committee . </Li> <Li> First President to serve as a diplomat to China, having served as Chief of the U.S. Liaison Office to the People's Republic of China from 1974 to 1975 . </Li> <Li> First President to be the subject of a Presidential biography written by his son . </Li>

Who was the first u.s. president to be photographed