I find this hard to believe. Whatever you think of Obama, and I don't think much, you don't call the President of the United States by his first name especially if you work for him. In public or in private, it's always Mr. President.
I also don't like it when reporters feel they have some right to call the President Mr. "Last Name". It irritates me.
Some people refer to the President as Mr. Obama as a subtle way to infer he is ineligible and is usurping the position. I refer to him as Obummer.