Haley fires back at Trump attacks in last stretch before New Hampshire

• Nikki Haley has upped her attacks against Donald Trump, days before the New Hampshire primaries that could make or break her campaign.
• Haley took aim at Trump's mental acuity and friendly relations with foreign dictators, reiterating criticisms she has doubled down on throughout the week.
• Outwardly attacking Trump is a shift for Haley, who throughout her campaign so far has gone softer on Trump, focused on edging out Ron DeSantis for second place.

Republican presidential candidate Nikki Haley has been throwing harder punches at GOP frontrunner Donald Trump, days before her make-or-break New Hampshire primaries on Tuesday.

The former U.N. ambassador on Sunday took shots at Trump's mental acuity, his cozy relations with foreign dictators and his position as an establishment figure. She has honed these criticisms over the past week as the New Hampshire primaries effectively became a two-person race between her and the former president.

Haley took aim at Trump's mental fitness after footage from one of his rallies showed him attributing the Jan. 6 insurrection to Haley, repeating her name four times, apparently mistaking her for former House Speaker Nancy Pelosi.

"If you have someone that's 80 in office, their mental stability is going to continue to decline. That's just human nature," Haley said Sunday on CBS's "Face the Nation."

She also railed against Trump's friendly relations with authoritarian governments, pointing to his "bromance with Putin" and "love letters going back and forth to Kim Jong Un."

"You can't have someone who's trying to buddy up with dictators that want to kill us. Instead, you have to let them know what we expect of them," Haley said.

Dedicating her talking points to Trump attacks is a marked shift