Gravitas?

Americans want their Presidents to be one of the people while simultaneously having a certain aura of authority.

Presidents wear suits while working but are expected to dress down when goofing off.

While it's hard to define that special gravitas that marks a President that Americans can be happy with I'm fairly sure it doesn't include calling an opponent a "bullshiter" or posting a picture of your opponent wearing a dunce cap on your web page.

It is said that the true character of a man is revealed when he is facing his greatest challenge.  If so we have discovered that Obama is a petulant and easily offended man who maintains one standard for himself and another for those he dislikes.