We often look for skeletons in the closets of politicians.

我们经常在政客的寻找骷髅。

This expression " a skeleton in the closet" refers to a family secret that is embarrassing or perhaps one that is shameful, that you don't want other people to find out about.

“a skeleton in the closet” 这个表达是一个令人尴尬的家庭， 者是一个你不想让别人知道的可耻的。