In an interview with CNN's Jake Tapper on Friday, Trump was asked to share his thoughts about Clinton's speech beginning with the "thin-skinned" remark.
"Well, I don't have thin skin," Trump protested. "I have very strong and thick skin. If you do a report and it's not necessarily positive but, you're right, I never complain. I do complain when it's a lie or when it's wrong."
Trump then went on to explain how his thick skin and "good temperament" made him have "one of the best-selling books of all-time" and a successful television show.
"What does that have to do with temperament?" Tapper asked.
"You can't have that success without good temperament," Trump said. "And I will say that, I was thinking about the word temperament. We need a strong temperament in this country. We have been led by weak and ineffective people."
Watch the full clip below: