The video shows Melania opening a White House Advent calendar, straightening a ring of roses around the fireplace and strolling through the brightly lit hallways of 1600 Pennsylvania Avenue.
Trump wrote, referencing this year's theme.
According to Melania's tweet this year's decoration theme is "The Spirit of America".
"I am delighted to share this attractive exhibit of patriotism for all to see, and excited for everyone to experience the beauty of the Christmas season!" she wrote.
To spread holiday cheer, the exhibit features ornate paper stars that are hung from the ceilings along with a festive red carpet and light fixtures.
This year's decorations include the official White House Christmas tree, an 18-foot-tall tree displayed in the Blue Room.
Don't fiddle while the planet burns, United Nations chief warns climate summit
The blue zone will also host events and activities run by NGO actors and side events organised by participating countries. The Climate Change Conference is held annually within the framework of the UNFCCC.
New Facebook tool lets you export pictures and videos to Google Photos
Today, Facebook announced it's launching a photo transfer tool that will let users port photos directly to Google Photos.
Mauricio Pochettino ready to get straight back to work after Tottenham sack
Quizzed on his future plans by Fox Sports , Pochettino said: "There are a lot of clubs and attractive projects for me to take on". Pochettino has been back in Argentina and paid a visit to his former club Newell's Old Boys over the weekend.
The East Wing features the Gold Star Family Tree, which the statement says was decorated by Gold Star families. According to the statement, the State Dining Room, "celebrates America the lovely", with a gingerbread rendition of the South Portico of the White House and landmarks from across the country.
Last year, the First Lady was mocked for her choice of red Christmas decorations - people on Twittermocked a video of her walking through the "blood-red trees", comparing the scene to everything from "The Handmaid's Tale to ground meat". Thank you to all of the staff and volunteers who worked to make sure the People's House was ready for Christmas.
On Sunday night, upon returning from a long holiday weekend in Florida to celebrate Thanksgiving, Trump made a final walk-through at the White House, checking details of the decorations, which had been installed while she was out of town.
The White House previewed the decorations for journalists on Monday before Trump and the first lady were to depart for London.
Another view of the Green Room during the 2019 Christmas preview at the White House.