Sean Spicer may be the dumbest person in the Trump administration. He should definitely check in with Jared Kushner for a little lesson.

But then, you don’t need to be Jewish to know that Hitler used chemical weapons to kill millions of his own citizens: Jews, Catholics, homosexuals, Roma, people with disabilities, political dissidents, etc. You don’t even need to be a historian.

I thought it was common knowledge.

Lesson: Make no assumptions about what Sean Spicer knows.