That they do.
The real problem for the Dems is that everything embarrassing about Trump has probably been exposed already, so not much chance of an October surprise there, while Harris must have a vast store of possible surprises to spring in a couple of weeks.
The Dems will have little if any chances of another "pussygate" recording not yet revealed. Also, but at this stage, it seems unlikely that the Dems will succeed in another significant court case guilty verdict without being too blatantly obvious.