Donald Trump on Wednesday defended a tweet that he posted three years ago that stated the estimated number of unreported sexual assaults in the military and then mused: "What did these geniuses expect when they put men & women together?"

"Well, it is, it is a correct tweet," Trump said when asked about the tweet during NBC News' Commander-in-Chief Forum in New York on Wednesday night. "There are many people that think that that's absolutely correct ... Well, well, it's happening, right? And, by the way, since then, it's gotten worse."

NBC's Matt Lauer, who led the forum, pushed Trump to better explain himself and asked if the Republican nominee thinks that the only way to end sexual assault in the military is to kick women out. (Sexual assault in the military is not just a problem for women, as that Pentagon has said that many assault cases involve men attacking other men.)

"No, not to take them out, but something has to be happen[ing]," Trump said. "Right now part of the problem is nobody gets prosecuted. You have reported — and the gentleman can tell you — you have the report of rape, and nobody gets prosecuted. There are no consequence[s]. When you have somebody that does something so evil, so bad as that, there has to be consequence[s] for that person. You have to go after that person. Right now, nobody's doing anything. Look at the small number of results. I mean, that's part of the problem."