Donald Trump has made enormous changes to the White House during his time in office: He’s paved over the Rose Garden, stripped the palms from the Palm Room, and most unforgivably, razed the executive estate’s East Wing.But one strange detail about Trump’s bathroom renovation, revealed by New York Times reporters Jonathan Swan and Maggie Haberman in their new book, Regime Change, might be the grossest yet.“New carpet was laid in the bathroom on Inauguration Day, as before,” the authors wrote. “Trump’s preference for a fully carpeted bathroom had posed a challenge for the Residence staff during his first term. The portion nearest the shower would often be soaked through; the staff was never quite sure why, but they worried about mold growing underneath.”Carpeted bathrooms became trendy in the 1970s and ’80s, several decades after synthetic fibers—namely nylon—were first introduced as carpet materials, making wall-to-wall carpeting a possibility for American homeowners. The novel idea was initially marketed as a luxury option, extending the lush comfort of the bedroom into the washroom. But the fad quickly fell out of style for obvious reasons. By the late 1980s, carpeted bathrooms had largely been replaced with vinyl or tile to reduce the possibility of trapped moisture and mold growth.Trump, however, seems to have held onto the fantasy that it could be done well.“It was important to him to have a fully carpeted bathroom, and residence staff’s solution to the damp problem, or the potential mold problem, was to get essentially a small piece of carpet and overlay it as if it was a bath mat on top of the carpet in front of the shower, and then substitute and rotate that carpeting,” Swan told MS NOW. “So, we do have some details from inside the residence, including some disputes and tensions between the president and the first lady over the interior decorating and renovating.”The Times duo’s reporting revealed further interior decorating disputes between Trump and his wife, with the president often removing items that Melania had intentionally placed around the residence and stowing them away in his office.