|Trump has something on Hillary that he hasn’t let out of the bag yet. He has even alluded to it on occasion.
If we speculate, it would have to do with donations to Hillary’s NY Senate campaign or something more ominous.
Trump could have a lot of information on Hillary that she wouldn’t want out. Not only was she a senator from New York, but he could know some things about Bill.
It is safe to say that regardless of any secret that Donald may be keeping, he has known the Clintons for a long time and will know how to hit hard and where it counts.