It's the problem I saw in his debates as well. He lacks the charisma most politicians have when it comes to public speaking. While his POV regarding the problems of contemporary United States plus his openness towards new innovation is amazing, if you lack a certain aspect--the feel of the people most especially--on what people are looking for in the next POTUS, you simply won't take the cut.

Bernie is even trying so hard to throw shade at Trump, though that's justified knowing how thick of a knob the current POTUS is. Good thing Yang hasn't done any of that mud-slinging towards anyone, and if he continues that, he's got a long way ahead of him in clean politics.