The reason for Trump's Florida trip was not immediately clear and the White House did not immediately respond to a request for comment.
Releasing a statement on her decision not to attend Davos with her husband, Melania's spokesperson said she had revised her plans due to "scheduling and logistical issues".
The principal woman has had by numerous records a troublesome begin to 2018, confronting horde news stories about a dalliance her significant other professedly had with porn star Stormy Daniels.
President Donald Trump denies the undertaking occurred, and Daniels denies she got $130,000 from Trump's lawyer Michael Cohen to keep it concealed.
The first glimpse of the first lady came when she boarded Air Force One to return to Washington from Florida on Monday, January 15, walking up the stairs to the aircraft in blustery wind and rain, behind her husband, who carried an umbrella, but did not offer it to his wife.
Her spokeswoman, Stephanie Grisham, took to Twitter Friday to blast "flat-out false reporting" about marital strife in the White House.
January 22 was likewise the primary couple's thirteenth wedding commemoration, an event not set apart in any open way. "She is focused on her family & role as FLOTUS - not the unrealistic scenarios being peddled daily by the fake news", Grisham tweeted.
The White House faced one of its first controversies previous year when a statement marking the day omitted any mention of Jews.
Trump took a tour of the museum, participated in a moment of silence at the eternal flame in the Hall of Remembrance and lit a candle at the museum's prayer wall.