Newt Gingrich has a message for the GOP in Washington: Start taking Donald Trump seriously. Appearing on Fox News after Trump's Saturday win in South Carolina, the former speaker of the House argued that nobody in the Washington Republican political class should kid themselves about Trump's chances any longer. It is a huge night for Donald Trump and nobody should kid themselves. Here's a guy who seven months ago for the first time entered electoral politics, has learned at an extraordinary rate, Gingrich said, pointing to his second-place finish in Iowa and victories in New Hampshire and South Carolina. By...