He has NOT been “less than enthusiastic”. Maybe you should do some research instead of having it spoonfed to you.
He has been doing upwards of 5 campaign events on many days.
I’m sorry but my impression is based on what I have seen and heard from him, in past debates and (broadcasted) appearances.
Maybe the sin is one of omission in the coverage, but I can only formulate an opinion on the evidence that I am presented with (from the man, not his supporters).