Trump remained hospitalized for five nights following the procedure, returning to the White House on May 19.
Public interest in and news media coverage of first ladies exploded during the Obama administration, the first White House to extensively use social media to spread its brand, McBride said.
President Donald Trump is scheduled to head to the Maryland retreat on Friday afternoon, but his wife will not be seen boarding the presidential helicopter with him. As the worldwide media couldn't stop speculating about her whereabouts, she took to Twitter to quash rumours about her health and marriage.
Grisham tells CNN the first lady has been holding meetings with her East Wing staff about her platform initiatives, as well as planning for upcoming White House events. Last year's summit was held over two days in Sicily.
The first lady, who has been absent from public view for 22 days as of June 1, during which she underwent a successful kidney procedure, has always been rumored to be unhappy in the White House.
That speculation may soon be over, though, as the First Lady is set to make a public appearance at an event for Gold Star families on Monday. "She's looking at us right there".
Not everyone, though, believed that Mrs. Trump had actually written the tweet herself.
Mrs Trump's disappearance has triggered an array of conspiracy theories.
Her first clue that she would be a different first lady came when she chose to continue living at Trump Tower after her husband took office in January 2017, citing a desire to maintain stability for her son's schooling. Has there ever been less scrutiny of a modern First Lady? "I feel strongly that as adults, we can and should be best at educating our children about the importance of a healthy and balanced life", the first lady said.
Reports in January of an affair Donald Trump allegedly had with adult film star Stormy Daniels, whose real name is Stephanie Clifford, exacerbated speculation that Melania Trump was unhappy serving as he first lady and the spotlight that comes with it. She responded to the rumors on Wednesday in a message on Twitter.