“It's ridiculous, don't do this,” Trump tweeted.
Earlier, the American Museum of Natural History decided to dismantle the equestrian monument to Roosevelt at the entrance to the building amid protests against racism.
The mayor of New York, Bill de Blasio, explained that the museum asked to remove the monument, as the African and Native American next to Roosevelt look "enslaved and racially inferior."
A bronze monument to the 26th President of the United States was erected in 1940.