I've listened to tapes of Nixon and LBJ during their agonies in the White House. Nixon, combative and paranoid about Watergate; Johnson, pained and frustrated about VietNam. Both men had human, comprehensible reactions.
But Bush? At peace, serene, with his position and decisions? If that's not mentally/emotionally aberrant, I don't know what.
Eighteen months to go and, thank god, counting.