It would be really stupid if he manages to win after this tailspin. Normally I think the "meltdown" narrative for Trump is wrong because he whines and cries all the time and "melting down" is basically just standard operating for him. However, the past week or so has been a noticeable marked decline that strongly resembles accelerating dementia and may also be some other health event. Simultaneously, his campaign appears to be sputtering out with poorly run events, poorly run GOTV efforts and no apparent strategy. 

These are bunker days for Trump and yet he still has a very real chance of winning, even though he likely won't even be capable of forming sentences in a year. Madness.