"I think she's helped make it a much better position", the president said.
Powell served in the Trump White House for nearly a year before leaving her job as deputy national security adviser to return to Goldman Sachs in January 2018.
Haley's personal finances are detailed in her public financial disclosure as the USA ambassador to the United Nations.
Haley, whose given name was Nimrata Randhawa, was elected governor in 2010 of deeply Republican South Carolina and, during the 2016 campaign, had criticized Trump over his remarks on immigrants before their political reconciliation.
Japan officials to work together on North Korea
Last month, Abe hinted that he was prepared to meet with North Korean leader Kim Jong Un "to break the shell of mutual distrust". USA officials have maintained, however, that verified denuclearization remains a precondition for sanctions relief .
Haley made the surprise announcement this morning she would leave her post at year's end.
Heaping praise on Ms Haley, Mr Trump said she was a "very special person". Trump tweeted that "The people of SC are embarrassed by Nikki Haley". When the sanctions never materialized, White House officials said the plans had changed without Haley being briefed, and top economic adviser Larry Kudlow suggested Haley was confused.
"I don't agree with the president on everything".
Before she was named by Mr Trump to her United Nations post, Mr Haley was governor of SC, the first woman to hold the post. She represents the Trump administration's agenda in the United Nations, a body the president has long criticized.
"I will say this, for all of you that are going to ask about 2020, no, I am not running for 2020", Haley said.
Jadon Sancho and Mason Mount named in England squad
The countdown clock to 2022 has since been taken down at St George's Park, but the focus and hunger remain under Southgate. We think there are some exciting young players that we've been tracking, either through their clubs or our junior teams.
After a frosty relationship with Rex Tillerson, Trump's first secretary of state, she and Tillerson's successor, Mike Pompeo, often exchanged mutual praise.
Diplomacy and national security reporter for The Washington Post, John Hudson, detailed some tangible reasons why Haley may have left her post at the UN. He already has eight years of experience of working at the UN.
In the days leading up to Haley's sudden and surprising resignation Tuesday, senior White House officials reached out to Powell about replacing possibly taking the role, according to three people with direct knowledge of the matter. "She has always planned to serve one year before returning home to NY, where she will continue to support the president's agenda and work on Middle East policy", Sanders said at the time.
"She got to know the players, she got to know China, Russia, and India.they like her...they respect her".
Missing Interpol president sent wife image of knife before his disappearance
Meng's wife told reporters in the French city of Lyon on Sunday she hasn't heard from her husband since September 25. She said: "As long as I can't see my husband in front of me, speaking to me, I can't have any confidence".