Voice problems
There are two rather-leftist declared candidates for president who have some really good positions but voice or vocal presentation issues that will keep them from gaining as much support as they otherwise might.
Robert F. Kennedy, Jr. suffers from spasmodic dysphonia and it makes him sound as if he’s not confident of what he’s saying.
Cornel West talks in a black-prophetic manner that ain’t going to appeal to white people outside of our radical milieu. If we’re trying to bring back in the white working class, well, Cornel’s presentation is just not very likely to resonate.