What’s “Presidential?”

I wish I knew a few Trump supporters well enough to ask them for their candid opinion of the concept at left.  In particular, do they think it’s “presidential” to lose focus on the issues of the day, e.g., a frightening economy, to attack pop stars who disagree with you?

Republicans admire Ronald Reagan.  Can you imagine “The  Gipper” lowering himself to a verbal slap-fest with, perhaps, Frank Zappa who may have made a derogatory comment about  him?

Don’t you think there is something insanely childish and mentally ill about this?