Presumptive GOP nominee Donald Trump and media power player Megyn Kelly settled their long-standing feud and came face to face on the much-awaited interview. Trump said during the interview that he would not have been successful in the primary race if he had held back from attacking his rivals. The comment was made in response to the criticisms of his campaigning style.

Trump also said on Tuesday’s episode of “Megyn Kelly Presents” that if he doesn’t win the elections this fall, he would consider all the efforts that went into the campaigns as a “complete waste.”

“I will say this: If I don’t go all the way, and if I don’t win, I will consider it to be a total and complete waste of time, energy and money,” Trump said in the interview aired on Fox Broadcast Networks affiliates.

The clashes between Trump and Kelly started last summer when during a presidential debate the latter asked Trump questions which he later flagged as unfairly harsh.

“A lot of people in the country wanted to see that sit-down. And it had to happen at some point,” the Fortune quoted Kelly as telling Stephen Colbert on the “Late Show” when he asked why she wanted to interview Trump. “It’s been such a crazy year with him that we had to have just one heart-to-heart, if you will, over what has happened. And then we can move on.”

The interview, which is more a personal look at Trump than a debate-style inquisition, was promoted by Kelly for more than a week, CNN Money reported.

Trump said on “Megyn Kelly Presents” that he “absolutely” has regrets when he looks back, but at the same time, he would not have been able to reach the top without hitting his political rivals. He added that he is a “counter-puncher,” one who only responds to the criticisms thrown at him.

“I respond pretty strongly, but in just about all cases, I’ve been responding to what they did to me,” the Fox News quoted him as saying. “It’s not a one-way street.”