President Donald Trump sent a second tweet Wednesday night about what he deemed the partisan nature of network news, threatening to challenge and revoke their licenses.

“Network news has become so partisan, distorted and fake that licenses must be challenged and, if appropriate, revoked. Not fair to public!” Trump tweeted on Wednesday night. The tweet came after Trump returned to Washington D.C. from Pennsylvania, where he was giving a speech on tax reform — and shortly before he was set to appear in an interview with Sean Hannity on Fox News.