Former South Carolina Governor/U.N. ambassador Nikki Haley appeared on "Face the Nation" Sunday and showed she is not ready to concede to Donald Trump in the race for the GOP presidential nomination, criticizing his mental decline and the "chaos" that surrounds the former president 

After her appearance, Florida Gov. Ron DeSantis announced he was suspending his campaign, making it essentially a two-person race between Trump and Haley.

BREAKING: DeSantis Suspends Presidential Campaign, Endorses Donald Trump

Asked why she was still going when the polls are not in her favor and Trump just won a resounding victory in the Iowa Caucuses, Haley replied that's what primaries are for and that many Americans don't want to see a Trump-Biden redux:

Well, I mean, this is what primaries are all about. This is about the fact that, you know, people get to decide which way they want to go forward. What I have said, as you can either pick more of the same, or you can go forward with the new generational leader. More of the same is, you know, the fact that you've got 70% of Americans don't want to see a Trump-Biden rematch...

More of the same is the fact that we're gonna have two presidential candidates in their 80s. That's not what our kids want. That's not what we should want. You know, more of the same is the fact that we can't be a country in disarray and have a world on fire and go through four more years of chaos. We won't survive it. We've got to get a new generational leader. I'm making my case to the people of New Hampshire. New Hampshire sees it for what it is, they know that responsibility, and we're going to try and bring this home in two days.

She also questioned whether Trump's mind was as sharp as it used to be. Watch:

Did @NikkiHaley ever question Donald Trump’s mental fitness when she served in his cabinet?

“I called him out if he was doing something wrong,” but she says that Trump is now “just not at the same level he was at 2016. I think we're seeing some of that decline.” pic.twitter.com/D5coEaehEs

— Face The Nation (@FaceTheNation) January 21, 2024

Haley went on to point out several instances where she alleges Trump got confused:

If you look, recently, there have been multiple things. I mean, he's claimed that Joe Biden was going to get us into World War II. I'm assuming he meant World War three. 

He said that he ran against President Obama. He never ran against President Obama. He says that I'm the one that kept security from Jan- from the Capitol on January 6. I was nowhere near the Capitol on January 6. But Margaret, you don't be surprised if you have someone that's 80 in office, their mental stability is going to continue to decline.

He's simply not as sharp as he was when he was president, Haley alleged.

I mean, we're seeing he's just not at the same level he was at 2016. I think we're seeing some of that decline. But more than that, what I'll say is, focus on the fact that no matter what it is, chaos follows him. Rightly or wrongly, chaos follows him... 

Haley has a tall hill to climb, even with DeSantis and others bowing out. She has made some unforced errors as of late and has been heavily criticized by Tucker Carlson, Donald Trump of course, Dan Bongino, and others. However, for now at least, she is not showing signs of backing down or planning to withdraw. With the New Hampshire primary coming up on Tuesday, Haley needs a strong showing to shore up her prospects. Then on March 3 comes the primary in her home state, South Carolina, where she would really need a win.

Watch the full interview here: