In publicizing the photos and videos, Democrats in Congress appeared to be intensifying pressure on the Justice Department to release its files on the Epstein case.

The billionaire real estate developer’s relationship with Mr. Epstein is in the spotlight, with the release of emails and images of Mr. Epstein’s private home in the Caribbean.

Workers installed the president’s name on the Washington institute, thrusting it back into the spotlight as it is set to host the signing of a peace deal between Rwanda and Congo.