Venkatesh Rao@vgrThis does not need to be analyzedQuote TweetCNN@CNN·Mar 22, 2018President Trump tweeted that he could knock out Joe Biden. Here's what that reveals: 1. Being "presidential" is not a thing for Trump 2. Trump is a street fighter 3. Trump is very, very frustrated Analysis by @CillizzaCNN: http://cnn.it/2FUiIXR1:58 AM · Mar 23, 20186 Likes