Catching up with Donald Trump in the "spin room" after Saturday's GOP debate, NBC's Hallie Jackson attempted to get Donald Trump to say who he thought "lost" the GOP debate, hoping, perhaps, to get the New Hampshire frontrunner to attack Sen. Marco Rubio. For his part, Trump refused to take the bait. "Who do you think, of your rivals, underperformed tonight, Mr. Trump," Jackson asked. "Well, I know who they're all saying underperformed on the Internet, and I know the, your coworkers are all saying... but I don't want to say," Trump replied. "Besides you, who won the debate tonight,"...