Donald Trump’s 2020 presidential campaign says all three major networks have joined CNN in refusing to air an ad that attacks them.

CNN was the first to reject the 30-second spot, which included the words “fake news” in bold, red font over photos of news anchors, including CNN’s Wolf Blitzer, MSNBC’s Andrea Mitchell and Rachel Maddow, ABC’s George Stephanopoulos and CBS’s Scott Pelley.

And now the Trump campaign is saying the move represents unlawful censorship.

“Apparently, the mainstream media are champions of the First Amendment only when it serves their own political views,” Lara Trump, the president’s daughter-in-law and campaign consultant, said in a statement Friday.