In GOP circles, the Democratic front-runner is seen as so strong, and the political climate for Republicans so hostile, that many influential voices ... have grown despairing...The election is 21 months away. It would do everyone well to remember that in February 1991, 21 months before the 1992 presidential election, George H. W. Bush was riding high with approval ratings in the 80% range, and that potential Democratic opponents were opting out of the race because he looked unbeatable. The elder Bush would go on to lose that election with only 37% of the popular vote.
Even some well-connected outside advisers to Bush... are advising Republicans that it will be next to impossible to win the White House if Bush's popularity remains so low, and public disgust with the war so high. Beyond the polls, some said there are gaps between the organizational prowess of the Clinton operation and any of the Republicans currently competing for the nomination.
Granted, this is a different time and this George is a different Bush. But let's see where things stand a year from now before we start making crystal ball predictions.