I liked the article at the head of the thread.
"Comfort level" is a pretty superficial way to judge a candidate, even if it's something more than mere racial prejudice. Of course, some voters will make "comfort level" the primary reason for voting for the candidate, but even amongst those who are most influenced by it, I don't think they'll score one candidate 100 and the other zero in comfort level. And my theory is that it would take a very wide gap in comfort levels to swing a vote one way or the other.
But on the "aura" or "vibe" level, there is youth, energy, optimism and hope on the one side and age, tiredness, meanness and rearview-mirror driving on the other. McSame has got a huge uphill road to travel and I can't see him even making it halfway up.