http://twitter.com/#!/ReganLieutenant/status/477244929932922880 “When I was ready to say what I said, I said it.” Hillary Clinton’s interview Thursday with NPR’s Terry Gross turned contentious when Gross pressed Mrs. Clinton on same-sex marriage and the Defense of Marriage Act, signed into law by President Bill Clinton in 1996. http://twitter.com/#!/NYMag/status/477242766074728449 The exchange became so testy and convoluted that the…