Assange had an AMA on reddit, and he said they received Trump intel pre election and judged it was not worthy of releasing compared to the Clinton data dump.
Whenever this comes up, I like to ask what people would expect could be revealed about Trump that would materially change anything. The Clinton campaign raked him over the coals to the point that deluded people now think wearing a vagina-shaped hat is some manner of effective protest. It seems pretty likely that any leaks about Trump would be boring in comparison to how he appears in the public eye in the first place.
