Along with Grenell, other names being floated to replace Haley include U.S. Ambassador to Russia Jon Hunstman and acting Under Secretary for Public Diplomacy and Public Affairs Heather Nauert, even first daughter Ivanka Trump.
Haley has handled a number of contentious issues during her time at the UN, including withdrawing the US from the UN Security Council.
And Michael Ian Black joked: 'He's going to make Ivanka UN Ambassador.
Despite tensions between the USA and Russian Federation, particularly at the U.N., Russia's ambassador, Vassily Nebenzia, said, "I regret that she is leaving because we had a good working and personal relationship despite all the differences we were and are having".
The former SC governor, who is viewed by some in her party as a future presidential candidate, firmly denied she planned a challenge to Trump's reelection. Alas, Graham is "not interested" in a Cabinet spot, an aide told CNN.
Haley, a novice in worldwide politics, became United Nations envoy in January 2017. Haley in her availability with Trump said she won't run against Trump and will instead campaign for him. The president said Haley told him six months ago she would be leaving at the end of the year. "I look forward to working with her for the rest of the year".
"We're all happy for you, in one way", Trump said.
But the White House did not provide an immediate explanation for her departure. "It is so unbelievably well done", she adds, referring to the not-yet-unveiled plan for the Israeli-Palestinian conflict. "I am saddened that she is leaving the administration, but so grateful for her service".
Nikki Haley has resigned as the US ambassador to the United Nations, according to multiple media reports.
Lawmakers and Trump administration officials showered Haley with praise when the news of her resignation broke. On Tuesday, she said one of her accomplishments was that the United Nations imposed an arms embargo on South Sudan in a US -sponsored resolution. "If I disagree with something and believe it is important enough to raise with the president, I do it", she wrote at the time.
Haley is a former SC governor who is speculated to have aspirations for higher office.
"She's done a fantastic job and we've done a fantastic job together".
"Nikki Haley has a very bright future and will be a key player in both the future of the Republican Party and our nation as a whole for years to come", Sen.