Haley's moves to reform UN will be part of her legacy, says expert

Foreign policy expert Peter Rough said on Wednesday that outgoing U.S. Ambassador to the United Nations Nikki HaleyNimrata (Nikki) HaleyPollster says Trump unlikely to face 'significant' primary challenge Trump blocked renomination of Obama-era UN racism official, won't pick a replacement: report Trump says he considered nominating Ivanka to lead World Bank MORE's moves to reform the international body will be a lasting part of her legacy. 

"For the Democrats, the U.N. is really the crown jewel of sort of the post-World War II international system, but for Republicans, the U.N. is synonymous with a lot of ... corruption," Rough, a fellow at the conservative Hudson Institute, told Hill.TV's Krystal Ball and Buck Sexton on "Rising." 

"Think back to the Oil-for-Food program in Iraq in the 1990s, some scandals in the peacekeeping department as of late," he continued. 

"So she really took it to the U.N. in attempting to reform the U.N. to try to make some changes there, and I think that will be a legacy of hers," he said. 

Haley sent shockwaves through Washington on Tuesday after she announced she would be leaving her diplomatic post in the Trump administration. 

The former South Carolina governor delivered on Trump's foreign policy agenda in taking a tough stance against the international body. 

She announced the United States's withdrawal from the United Nations Human Rights Council in June, saying the body was a “protector of human rights abusers, and a cesspool of political bias.”

Republicans largely viewed Haley's departure as a blow to the administration. 

Former deputy national security adviser Dina Powell is among those who have been floated as a possible successor. 

— Julia Manchester