Fox News has learned former Speaker of the House Newt Gingrich will make a major announcement about his presidential aspirations in Atlanta on Thursday. Washington sources close to the looming Gingrich campaign tell Fox News they have been told to be ready to travel to Atlanta Thursday when Gingrich will make an announcement about forming a presidential exploratory committee. All signs point to Gingrich officially entering the 2012 race and these sources believe that Newt will throw his hat into the ring on Thursday by announcing that he has completed the proper paperwork to form an explanatory committee.