You'd have to be a pretty dedicated Brit observer of US politics before you could get your head around the labyrinthine US system of caucuses/open and closed primaries/ conventions for choosing your presidential candidates. I've heard of a few small, or not so small, voices within the GOP lamenting what's happened to the party and calling for a reset. I'd like to hear from you savvy yanks whether you think there could be enough groundswell in the party to preclude him from standing again (obviating the need for congressional processes, which are in danger of failing, to remove the possibility), or whether there could still be too much popular support for him, thereby sweeping away those doubts. Again, it's always best in these debates to leave your personal wishes at the door...