Lichtman's prediction is not based on polls but on 13 categories which he calls the "Keys to the White House" -- and Harris has the edge in eight of those metrics compared to Trump's three. ​​But there is always a possibility that he could be wrong, he conceded. “But it’s always possible that something so cataclysmic and so unprecedented could change the pattern of history.” “My predictions have stood the test of time, my indicators have always been right,” he said. “The keys are very objective and quantitative.”