Explaining President's Day to a Toddler

I suck at Photoshop apparently

(This morning at the breakfast table)

Me: Do you know what today is?

Son: A "stay home" day?

Me: Yes, that's true. But it's also President's Day. Do you know what a president is?

Son: Like "O'Rock Obama?"

Me: That's right! But do you know what he does?

Son: No

Me: Well, he is the leader of our country. Kind of how Leonardo is the leader of the Teenage Mutant Ninja Turtles

Son: Oh, okay!

My wife rolled her eyes at me, but I say as long as he understood the analogy, why not?