Former U.S. Ambassador to the United Nations Nikki Haley Nimrata (Nikki) Haley'The soul' versus 'law and order' Author Ryan Girdusky: RNC worked best when highlighting 'regular people' as opposed to 'standard Republicans' GOP lobbyists pleasantly surprised by Republican convention MORE on Thursday said that she thought the administration could have handled Rudy Giuliani Rudy GiulianiThe Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting CIA found Putin 'probably directing' campaign against Biden: report Democrats fear Russia interference could spoil bid to retake Senate MORE's work with Ukraine better by appointing him as a special envoy to Ukraine.

“I think it could have been handled better. I mean I think they should have named him the special envoy so that everyone within the administration knew what his role was,” Haley said in a Thursday appearance on CNN.

Nikki Haley says Rudy Guiliani's role in the Ukrainian policy: "I think it could have been handled better. ... I think they should have named him the special envoy so that everyone within the administration knew what his role was" pic.twitter.com/ya2Val6skh — CNN Politics (@CNNPolitics) November 14, 2019

Giuliani has emerged as a central figure in the Trump administration’s contacts with Ukraine, the issue at the heart of House impeachment inquiry launched earlier this year. Multiple Trump administration officials have testified about Giuliani’s role in contacting and meeting with Ukrainian officials.

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Former special envoy Kurt Volker Kurt VolkerGOP senators request details on Hunter Biden's travel for probe Yovanovitch retires from State Department: reports Live coverage: Senators enter second day of questions in impeachment trial MORE introduced Giuliani and a top adviser to Ukrainian President Volodymyr Zelensky, Andrey Yermak, in July, according to a text message Giuliani tweeted. He has confirmed that he met with other top officials in an effort to uncover information about former Vice President Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE and his son Hunter Biden.

Why does this text and date render the hearsay so-called whistleblower useless and not credible? If you get even one reason I might recommend you for Law School. Two and it’s LawReview. Answers later. Watch Laura at 10 pm. pic.twitter.com/fN1kOtclaM — Rudy Giuliani (@RudyGiuliani) September 26, 2019

In sworn testimony George Kent, deputy assistant secretary at the State Department, said that he believed Giuliani was "looking to dig up political dirt against a potential rival in the next election cycle."

Several GOP lawmakers have also expressed concerns about the “shadow” diplomacy work by Giuliani in Ukraine, including Rep. Ted Yoho Theodore (Ted) Scott YohoKat Cammack wins Florida GOP primary in bid for Ted Yoho's seat The Hill's Convention Report: Democrats gear up for Day Two of convention Eyes turn to Ocasio-Cortez as she seeks to boost Biden MORE (R-Fla.), Rep. John Curtis (R-Utah) and others.

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David Hale, undersecretary of State for political affairs, testified in a closed-door interview with lawmakers that Giuliani was part of a shadow campaign by Trump to oust Marie Yovanovitch, former U.S. ambassador to Ukraine.

Yovanovitch is scheduled to appear in a public hearing on Friday morning.

Haley pushed back on whether Trump’s actions rise to the level of impeachment.

“It’s hard for me to impeach a president. It is the highest level of punishment that you can possibly do. When an investigation didn’t happen, and the aid flowed, I just don’t see how that rises to the worst possible crime,” Haley told CNN.