An empty folder marked Classified and a Situation Room brochure on display at a Trump Tower bar further expose Donald Trump s contemptuous attitude toward the law and U.S. security issues, charged the leader of a national watchdog organization.

Its a really cavalier approach to a serious national security system and issues, Noah Bookbinder , president of Citizens for Responsibility and Ethics in Washington, told HuffPost on Friday. It shouldnt be treated lightly. Theres a reason this is taken very seriously.

The display in the former presidents building underscores his contemptuous attitude about the national security system and his belief that he doesnt have to follow the rules, Bookbinder said.

The folder marked Classified on a red banner with the presidential seal and an Evening Summary label has been on display for several months behind glass in the 45 Wine and Whiskey Bar in the lobby of Trump Tower in midtown Manhattan. The display also includes several huge photos of Trump and copies of letters and notes to and from the former president.