A federal judge on Monday ruled that the Trump administration and Department of Government Efficiency’s takeover and gutting of the U.S. Institute of Peace were unlawful.

The decision declaring DOGE’s actions at USIP “null and void” is the latest in a series of judicial rebukes of efforts by President Donald Trump and the so-called DOGE to slash the size of the federal government. DOGE has been led by Trump advisor Elon Musk.

The ruling came two months after DOGE team members took over the headquarters of USIP with the help of law enforcement. That move came after Trump signed an executive order that said the independent nonprofit group created by Congress 40 years ago to promote conflict resolution was “unnecessary.”