After every federal election, there's usually at least a year to get over being sick of politics. One danger declaring this early is a horrendously long stretch of not wearing out one's welcome.
Additionally, if you've ever played hearts, when one player 'shoots the moon' and takes an early lead in the game, the other players target the leader instead of each other. The targetted player soon falls behind and the others keep pounding on him/her from force of habit until the game is over and the early leader is among the losers.
Hillary screwed up.
No!! She is screwed up.