WASHINGTON — Democratic socialist Rep. Alexandria Ocasio-Cortez fired back at critics of her recent gaffe-filled attempt to show off her foreign policy bona fides in Germany, contending it was proof she thinks before she speaks. Ocasio-Cortez (D-NY) was noticeably hoarse as she responded to the blowback she received after stammering over a question about how the US should respond to a hypothetical Chinese invasion of Taiwan is due to the public being conditioned to President Trump’s impulsiveness. “If you think I don’t understand foreign policy because out of hours of discourse about international affairs, I pause to think about one...