Well Newt made it official today and man that was one long announcement! He covered everything from education, healthcare, national security to space exploration.
There was also no official endorsement for Romney or Paul (who is still in the race). Newt did make it clear between having two choices of Obama or Romney. When he said he was asked whether Romney was conservative enough Newt said “… compared to Barack Obama?!… This is a choice between Mitt Romney and the most radical leftist president in American history”.