Alright, I realize how unlikely this is. Yes, the Republican Party nominates based on who its establishment supports, and in 2000 the inevitable candidate was George W. Bush. But let's say, for the sake of argument, John McCain pulls off an upset nomination, for whatever reason seems most plausible. Point is, John McCain is the Republican nominee. Further suppose that McCain defeats Al Gore in the general election. In what respects would McCain's Presidency differ from Bush's?