2020 campaign? He needs to get into campaign mode now, hitting the issues hard. Personal attacks like “pencil neck” will get him nowhere.
Why?
So you can be entertained?
Its June of the year before the election, and he has no idea whom will be his opponent. And the public is little paying attention.
So why not use up your best rhetoric now, because no reason at all?
Let these idiots fight it out. He can poke at them from Twitter for cheap.