The 2020 Democratic Presidential primaries will be like watching a pack of hungry Chihuahuas fighting each other over a single raw steak: entertaining in a cruel way, but not enlightening or elevating.
The best part will be when the LION then eats the steak and victorious chihuahua in a single gulp.
Oh yes — that will be the best part of the show! And to borrow your metaphor, every now and then, we will get to see the lion swat one of the Chihuahuas, as with Trump blasting Elizabeth Warren. I suspect that Trump prefers a male opponent in 2020 so as to remedy the political damage that his battle with Hillary caused to his and GOP standing with suburban women.