Donald Trump has insulted ethnic groups, entire nations, as well as public and private citizens since he launched his presidential bid in June of 2015.
But on Thursday, the GOP nominee appeared to apologize for something. There was no indication as to whom he was apologizing — and for what.
"Sometimes, in the heat of debate and speaking on a multitude of issues, you don't choose the right words or you say the wrong thing," Trump said at North Carolina rally. "I have done that. And believe it or not, I regret it."
Click to read a full list of who Trump may regret offending, as compiled by NBC News.