Twelve Democratic members of Congress sued the Trump administration on Wednesday, accusing immigration officials of blocking their access to detention facilities housing noncitizens.

In a complaint filed in Washington, D.C., federal court, the House lawmakers challenged a new Department of Homeland Security policy requiring seven days’ notice for visits, and deeming some facilities including Immigration and Customs Enforcement field offices “off-limits for congressional oversight.”

“Such blatant disregard for both the law and the constitutional order by the Trump administration warrants a serious and decisive response,” Neguse said in a statement. His Colorado district includes Boulder and other Denver suburbs.

The defendants include DHS, ICE, Homeland Security Secretary Kristi Noem and acting ICE director Todd Lyons.