June 26, 2014 - Howard H. Baker Jr., a key senator during the Watergate investigation and a former U.S. ambassador to Japan, has died. He was 88. PICTURED: June 1973, during testimony of John Dean - Senate Watergate Committee, Sen. HOWARD BAKER (Rep. Tennessee) with RUFUS L. EDMISTEN, Deputy Chief Counsel (Standing, center) and Samuel Dash, Chief Counsel and Staff. Dir. (Credit Image: © Keystone Pictures USA/ZUMAPRESS.com)