A steady stream of Texas Rep. Ron Paul's supporters walked out of a planned tribute for Donald Rumsfeld at CPAC Thursday afternoon. The walk-out had been planned ahead of time in part by Campaign for Liberty organizers and it seemed to be supported by more than 100 CPAC attendees. The former defense secretary was also booed when took to the stage. There seemed to be a back-and-forth between Paul supporters and other CPAC attendees trying to drown each other out while Rumsfeld watched. Former Vice President Dick Cheney then took the stage, but the heckling did not stop in what...