Political leaders are like trousers. You have to replace them after some period of time.
Problem is that no one is perfect – they are like unstandardised pants.
Some are very tight. If you fit yourself in it with an effort, chances are that soon you will listen a sound of tearing it off from back, not only embarrassing you but forcing you to find an alternate one immediately.
Some are loose from waist and tight from thigh. On the one hand, your waist does not hold it without the help of a belt, on the other hand your thigh does not allow it to be removed soon.
And third type are too short or small to wear.
But we have to choose the new one as we cannot leave without it or reuse the old one by removing the dirt.