If it were Pat Robertson (evangelical Christian leader) introducting the show, would you say the same thing? What if it were Hitler? It would not matter if either of those figures appeared to perfectly espoused science for a few minutes; it does not erase who they are.

The same is true for Obama. This is a man who is adamantly and explicitly opposed to the founding principles of America, including legislative and constitutional restraint on his power (see his "selective enforcement" of Obamacare, for example). This is a man who is creating a two-tiered healthcare system: one for the very rich and one for everyone else. This is a man who blocked the Keystone pipeline. (Can someone be pro-science but against the industrial development and improvement of the country? Answer: No.) And I could go on and on.

He is extremely politicized, literally 1/2 of the country hates living under his rule, and he has no business being allowed anywhere near science.