What an incredible coincidence that everyone -- the media, the judges who voted 6-3, and HN commenters like yourself -- sees this case along ideological lines!
Every case is obviously going to be viewed through the legal of legal ideology. That’s different from making it seem like it favors one particular political ideology. Liberals hated Chevron because agencies were generally less willing to push the law in their favor than judges. Under this ruling, they can go and sue in the ninth circuit and have liberal judges Decide what the clean air act means.