Its actually scriptural to boast in the Lord. Donald mangles stuff by boasting of himself in the the Lord. You would not want him to be your pastor. But that’s not what he’s running for.
I quoted Shakespeare, as Donald’s overenthusiasm with his response sounds phony to me. His referring to “Christians” and “they” and not “we” is telling as well. Not as blatant as “my Muslim faith”, but a bit of a slip.