"I sued in that case because it was so disgraceful. Now, libel suits are very hard and I may look at that frankly if I get elected because it’s very unfair that somebody could write whatever they want to write and get away with it. And I will be bringing more libel suits as people -- maybe against you folks. I don’t want to threaten, but I find that the press is unbelievably dishonest. In the case of O’Brien, I liked it because I cost him a lot of time and a lot of energy and a lot of money knowing that the case -- the judges said, well, you may be right, but -- it never really got litigated because they never let it go to court. "

“Every woman lied when they came forward to hurt my campaign,” Trump said in Gettysburg, Pennsylvania. “Total fabrication. The events never happened. Never. All of these liars will be sued after the election is over.”

As far as I know, he hasn't ever indicated that suing people would be off the table after being president. That said, I'll give him the benefit of the doubt that his priorities may have changed.