NEW YORK A trial balloon for a Cheney for President run in 2008 is being launched by a surprising source, Washington Post star reporter (and White House insider) Bob Woodward. Some critics claim that Dick Cheney has already been president for five years, so why should he go to the trouble of seeking the office (again) in 2008? But Woodward, appearing on Chris Matthews' NBC talk show on Sunday, labeled Vice President Cheney “a serious dark horse candidate.” He said that with "a number of people" going for the GOP nomination, “a guy named George Bush might come out and...