A core adviser to George W. Bush and Sen. John McCain made an election prediction Friday which he said was almost certain: “This sucker is baked.” Mark McKinnon, who served as the chief media adviser for both Republicans, shared his conclusion in Vanity Fair. He said that, with only 18 days until America goes to the polls and with no major events scheduled that could potentially shake-up the race, Kamala Harris could comfortably start planning her victory party. Want more breaking political news? Click for the latest headlines at Raw Story. “I mean, when you have the nominee of a major politic…