I'm not sure I like appending "gate" to some noun to denote a scandal but it does seem to be the easiest way to denote something folks are concerned about. This whole mess with the group chat is discussed here on Factcheck.org and one does get the idea that a lot of lies are being told by those who want to make it go away and that the combined forces of Congressional Republicans and the Trump Justice Department are going to make it go away. Me, I'm waiting for Dogegate. And/or maybe Measlesgate.