CNNDonald Trump has one real measure of success: RatingsCNNWashington (CNN) For the decade-plus before he decided to run for office, Donald Trump was a reality TV star. And from that experience, Trump has drawn one, clear conclusion: Ratings are the only measure of success that mean anything in this world.White House press secretary Sean Spicer defends Trump's 'significant' work in 100 daysABC Newsall 75 news articles »