Editor's note: Ed Rollins, a senior political contributor for CNN, is senior presidential fellow at the Kalikow Center for the Study of the American Presidency at Hofstra University. He is a principal with the Dilenschneider Group, a global public relations firm. He was White House political director for President Ronald Reagan and chairman of the National Republican Congressional Committee. Whether he announces or forms an exploratory committee this week or just dives in the deep water as a can...