"Is there anything more indecent than the human smile? All those predatory teeth reminding us of our animal descent."
--William Russell (The Best Man)
In politics, things are always terrible when the other party controls things. Once your party is in charge, then you MUST say that things are better, not worse.
A candidate for president from the same political party as the sitting president cannot say that things are bad, as that would be a slap in the face of the sitting president and the party itself.
Instead, that person will smile and say that things are downright great and that, if you vote for me, then things will remain great.