CNN is not going to the White House Christmas party. Sarah Sanders is laughing about it. Others on the right are mocking CNN. The network says that given the President's lack of respect for the media and his attacks on CNN in particular that it would not be appropriate to attend. But I don't think that is the big story.
The big story here is that there are other networks that claim to share CNN's principles, values, and integrity and are equally appalled by the President's attacks, but they're all still going.
Say what you will about CNN deciding it won't participate in the White House Christmas Party, but the real hypocrisy here are the networks that have also been attacked by the White House and still want to go. They have every right to. But it sure seems to suggest CNN takes the President's attacks on the free press seriously and these other networks also complaining about those attacks do not really take them seriously.