Home » FOXNews.com » technology news » Obama announces May visit to South Dakota, would be fourth president to visit all 50 states Obama announces May visit to South Dakota, would be fourth president to visit all 50 states Unknown 8:27 PM FOXNews.com technology news from FOXNews.com http://ift.tt/1PFz8iH Share: Facebook Twitter Google+ StumbleUpon Digg Delicious LinkedIn Reddit Technorati