Mark Knoller, a veteran CBS Radio White House correspondent and unofficial chronicler of presidential trips, said in an interview that his own numbers from the first eight months of 2001 show that Bush spent all or part of 50 days at his Texas ranch; all or part of 40 days at Camp David, the presidential retreat in rural Maryland; and all or part of four days at his family's vacation home in Kennebunkport, Maine. That works out to nearly 39 percent of his first eight months in the White House. Some debunking. I looked up Knoller's numbers, and he did the same thing as the Washington Post in figuring weekends into the numbers.