National Public Radioon Tuesday sued PresidentDonald Trumpover hisexecutive orderto cease all federal funding for the nonprofit broadcaster. Trump'sMay 1 orderviolates the First Amendment's protections for speech and the press and steps on Congress' authority, NPR and three other public radio stations claim in thelawsuitfiled in federal court in Washington, D.C. The order "also threatens the existence of a public radio system that millions of Americans across the country rely on for vital news and information," according to the legal complaint against Trump and a handful of top officials and federal agencies. It "expressly aims to punish and control Plaintiffs' news coverage and other speech the Administration deems 'biased,'" attorneys for the news outlets wrote. "It cannot stand."