Nikki Haley, former Governor of South Carolina, criticized Donald Trump’s foreign policy, rebuking the former president for his lack of response to the death of Russian opposition leader Alexey Navalny.

“Either he sides with Putin and thinks it’s cool that Putin killed one of his political opponents, or he just doesn’t think it’s that big of a deal,” Haley said Sunday on ABC’s This Week. “I think it’s important to stand with the Russian people who believe Navalny was really talking for them.”

Nikki Haley, who previously served as Trump’s ambassador to the United Nations, has recently taken aim at her former boss’s foreign policy.

This comes as she faces a challenging battle in the upcoming Feb. 24 Republican primary in her home state, where polls indicate she is trailing by double digits behind Trump, her sole remaining opponent for the GOP presidential nomination.

Haley squarely attributed Navalny’s death to Russian President Vladimir Putin, aligning herself with the accusations made by other Western leaders, including President Joe Biden.

Russia’s prison service claimed Navalny became ill at a high-security camp where he was incarcerated, and medical staff couldn’t revive him, Bloomberg reported.

Navalny, aged 47, had been a prominent critic of Putin, earning the leader’s ire through investigations exposing corruption at state entities and videos detailing the opulent lifestyles of senior officials.

Positioning her foreign policy expertise at the forefront of her presidential aspirations, Haley pledges to adopt a tough stance toward China and other U.S. adversaries abroad.

She has voiced disapproval of Trump’s approach, including his threats to NATO members regarding defense-spending commitments and his opposition to additional U.S. aid for Ukraine.

Haley reiterated her criticism of Trump during a town hall on Sunday evening, emphasizing her commitment to tough discussions with NATO allies behind closed doors, rather than airing grievances publicly if they fail to meet their commitments.

Written by B.C. Begley