Shorty
Boomer Boy
That’s plenty of basis. You’re expecting him to do what only a few have done. Why do you think he’s willing to stand up when others have not?
Some people would say a person’s integrity should be evaluated based on that person’s own actual words and deeds, not based on what one THINKS he will do due to the actions and deeds of others.
I have read nothing about Roberts that would indicate he would run a crooked trial for Trump or anyone else. Until he proves otherwise, I would expect to to be loyal to his oath.