 The Supreme Court ruled in 1984, if Congress had not directly addressed an issue, courts had to go with an agency's interpretation of a statute, as long as it was reasonable. George Washington University law professor Jonathan Turley told Fox's America's Newsroom, Look, you're going to have everyone in Washington go into spontaneous vapors. I mean, Chevron is a virtual religious item in the Beltway because it gave so much power to federal agencies.