Well, it’s none of my business, as I am not an American.
But I am a scientist, so it is my personal preference that political leaders should not have a distorted view of the natural world. Maybe you (and others) are right; it doesn’t matter what they believe, so long as they attempt to provide good government.
So how do you explain polystrate fossils? Or the wolemi pine? Or the coelacanth? That’s just for starters too.
101 Evidences for a Young Age of the Earth...And the Universe
http://creation.com/age-of-the-earth
Center for Scientific Creation - In the Beginning: Compelling Evidence for Creation and the Flood
http://www.creationscience.com/onlinebook/IntheBeginningTOC.html