On Thursday night, Republican presidential nominee Donald Trump gave a speech in which he offered an apology of sorts for the way he has conducted himself and his campaign thus far.

"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. I have done that, and believe it or not I regret it," the candidate dutifully read as per his new campaign staff's instructions. "I do regret it particularly where it may have caused personal pain.”

Democratic nominee Hillary Clinton's campaign responded with healthy skepticism.

“Donald Trump literally started his campaign by insulting people. He has continued to do so through each of the 428 days from then until now, without shame or regret," said a statement released only minutes after the speech concluded.

"We learned tonight that his speechwriter and teleprompter knows he has much for which he should apologize. But that apology tonight is simply a well-written phrase until he tells us which of his many offensive, bullying and divisive comments he regrets -- and changes his tune altogether.”

The campaign then offered a handy list of all of the people Trump has insulted and demeaned over the 14 months, including the blizzard of insults the former Reality TV star has lobbed at ideological opponents on Twitter, his attack on Gold Star parents Khizr and Ghazala Khan, on immigrants, on Judge Alonzo Curiel and more.

This week, the Trump campaign took on new staff in an effort to reverse the candidate's downward slide in the polls. Breitbart.com editor Stephen Bannon became the campaign's CEO and pollster Kellyanne Conway was installed as campaign manager.