Former House Speaker Newt Gingrich said Sunday that he strongly supports a federal mandate requiring citizens to buy health insurance – a position that has been rejected by many Republicans, including several who likely will be running against him for the Republican presidential nomination. Appearing on NBC’s “Meet the Press,” Gingrich told host David Gregory that he continues to advocate for a plan he first called for in the early 1990s as a Congressman, which requires every uninsured citizen to purchase or acquire health insurance.