I was going to do a post along these same lines, but why bother when someone has already done it so well? From Smart Girl Politics blog:
Mr. Hope and Change Becomes President Doom and Gloom
Barack Obama campaigned for almost two years on the mantra of hope and change. The campaigns cheer leading motto was "Yes We Can". Who would have thought that this campaign full of hope and promise would then become the administration of doom and gloom and "No, We Can't"