Justice Department lawyers representing the Kennedy Center did warn in a court filing that the building could eventually be demolished if President Trump’s proposed renovations are blocked, but the filing described a possible consequence of inaction rather than an announced demolition order or direct personal ultimatum.
Trump's lawyers are now threatening to demolish the Kennedy Center if he doesn't get his way.

DOJ says Kennedy Center could be demolished if Trump’s plans are blocked - The Washington Post
Source: washingtonpost.com
Key Evidence
The warning appeared in a court filing submitted by Justice Department lawyers representing the Kennedy Center, rather than in a public demolition order issued by President Trump.
What the Evidence Shows
Justice Department lawyers representing the Kennedy Center told a federal judge that the building could eventually need to be demolished if the administration is prevented from carrying out an extensive renovation. The filing reportedly characterized the center as severely deteriorated and financially unstable, and argued that President Donald Trump’s renovation plan was necessary to prevent further decline.washingtonpost.comwashingtonpost.comDOJ says Kennedy Center could be demolished if Trump’s plans are blocked
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