President Donald Trump's administration has asked Kimberly Guilfoyle to resign from her position as US ambassador to Greece, according to new White House Press Secretary Katie Zacharia.

Guilfoyle, a former Fox News host, was facing mounting scrutiny over allegations she asked a Trump donor to pay her hefty credit card bill in exchange for access to the administration and behaved inappropriately while in Athens.

Trump said on Tuesday that she had done a good job, but will "not be there" in Greece any longer. "I didn't like what I read," he said.

Guilfoyle acknowledged that her time as ambassador was "coming to an end", though vowed to defend herself and called the claims against her "false".

The ambassadorship had been the "honour of a lifetime", she added in her comments on X.

Guilfoyle was "asked to resign", said Zacharia during her first - and unusually short - White House media briefing. She did not provide further details.

"She has been a wonderful asset to the team, and we wish her well," Zacharia said.

Guilfoyle, the 57-year-old ex-wife of California Governor Gavin Newsom, was first nominated as envoy to Athens in December 2024, a month before Trump returned to the White House as president.

Around the same time, news broke that she had broken up with Donald Trump Jr, to whom she was engaged.

In her lengthy post on X on Tuesday, Guilfoyle thanked the elder Trump, said she would always be a loyal supporter and denied any wrongdoing.

"I intend to vigorously defend my name, my reputation, and my integrity," she wrote, adding that she would "not allow false accusations to define my decades of public service".

Her position had become increasingly tenuous as allegations of improper behaviour mounted over the past week.

A series of text messages seen by the BBC - and first reported by The Wall Street Journal - appear to show Guilfoyle asking for the money from Eric Deters, a long-time Trump ally.

"It won't show up anywhere if you wire money to American Express," she wrote in one Signal message.

In another message - dated just days before her US Senate confirmation hearing last July - Guilfoyle wrote: "Honey please I need you to get this done for me today."

Guilfoyle's lawyers disputed the authenticity of the messages and said she was asking for money owed to her for speeches and consulting work conducted on behalf of Deters before she became ambassador.

Read More