Melania hasn't been seen in public for almost three weeks, with outlets such as CNN, ABC News, and Vogue running stories about her 20-day absence.
'She is doing great.
The first lady then returned home to the White House on May 19.
The first lady recently underwent a minor kidney surgery, but her office says she's doing "great".
The White House is promoting the goals of the President's Council on Sports, Fitness and Nutrition, and yesterday was to hold a field day with the president on the South Lawn.
Previously, Melania's spokesperson, Stephanie Grisham also slammed the rumors surrounding her absence from the public eye.
"She's doing really well", Grisham told ABC News.
'Murdered' Russian journalist Arkady Babchenko turns up alive at news conference
He stood in unofficial elections organised by the opposition in 2012 and denounced Russia's actions in Syria and eastern Ukraine. The Russian journalist is known as the author of several books on military themes, which have been translated into 16 languages.
White House doctor said earlier this year that Trump acknowledged he'd be healthier if he lost a few pounds by exercising more and eating better.
Many are anxious about first lady Melania Trump, who reportedly hasn't been seen in public since before her emergency kidney operation earlier this month.
Melania Trump at Joint Base Andrews in Maryland on 10 May.
More partisan tweeters took the opportunity to use the first lady-is-missing theme to needle the Trump administration about its recent admission by immigration authorities that they had "lost track" of the whereabouts of about 1,500 immigrant children in their custody. "She's looking at us right there, '" wrote the Washington Post. Last Friday morning, a reporter shouted a question to the president about a his wife's whereabouts as he prepared to board Marine One to attend the Naval Academy commencement. Days later, she was checked into the hospital for kidney problems and stayed for a week despite the typical recovery taking a day. "She was hospitalized for nearly a week and is now home and recovering".
Jean Harris, who teaches political science and women's studies at the University of Scranton in Pennsylvania, said people so far seem to be giving the first lady "her space for a whole bunch of reasons".
As HuffPost's Ashley Feinberg, the internet detective who cracked former FBI Director James Comey's Twitter account, pointed out, the tweet echoed the president's most-prevalent criticism of the media, as well as several of his favorite empty yet patriotism-bolstering go-to phrases: "the media is working overtime", "working hard", and "on behalf of the American people". "Right there", Trump said.