Deal with it.

If you cannot deal with it, make peace with the fact that you cannot deal with it & deal with that.

On a less individual level - it is also a lesson to politicians: Don't get into a it's true-it isn't-it's true-it isn't-argument with the opposition. If their "fact" is is a lie, proof it wrong. If it is true, accept it and offer solutions how to deal with it.