Cruz is a true believer that puts his 'side' over anything (including his family). He stood up to Trump for a few minutes at the RNC but he's never not been scum.

I think there's def dirt on Graham though. Whether its Trump or Russia or both. I used to chalk it up to a schoolyard bully dynamic an LG needing an alpha in his post McCain life, but he goes waaay too hard on Trump bootlicking for there not to be more to it.