There is no evidence from credible media sources or the first couple that confirms Melania Trump's intention to file for divorce.
This revelation was made by Trump’s former aide Omarosa Manigault Newman, who was quoted by Daily Mail as saying that Melania is counting every minute until he is out of the office and she can divorce. Furthermore, Melania's former aide, Stephanie Wolkoff, called Donald and Melania's relationship a transactional marriage.
Contrastingly, President Trump's adviser Jason Miller--commenting on divorce allegations against Melania Trump--has claimed that the FLOTUS story is fake news. He further refuted reports that accused Jared Kushner of advising his father-in-law, Donald Trump, to concede after the US media projected Joe Biden’s victory in the 2020 presidential election.
Additionally, according to the Washington Post, Trump's most ardent critics have told the Washington Post that Melania is not likely to leave her husband. Michael Cohen, Trump’s former personal attorney, said, “I don’t think Melania leaves Donald. She’s very willingly complicit in his schemes and holds his beliefs as her own."
The claim is false as there is no confirmation from the first couple or any credible media sources.