There's a kind of behavior that is done deliberately in order to obfuscate the issue at hand. It's called crazy-making, and the Obama camp is masterful at it. They never, ever address the actual topic at hand (what Obama actually said) they just continuously change subjects, make it about the person asking, get defensive, etc.
Normal people cannot make sense of the conversation, so they just give up asking.
It's really sick and manipulative, and it's the way Democrats talk to everyone.
They're running the Alinsky playbook. It's right in there, personalize the attacks on your opposition, attack the person, not the message, humiliate and marginalize your opponent, etc. Alinsky disciples attack individuals, not groups or agencies, because they know that individuals are more likely to break under the assault than a group or organization, like a political party. It's dirty, mean, destructive, hateful politics, but that's what 'Rats are about.