Liberals came up with the same lie after the presidents appearance at the Daytona 500. You know they're lying, I know they're lying, and, most important they know they're lying.
Think about that for a minute. Can you imagine how hard it must be to live with a set of beliefes that you know are false?
It's not hard for them to live with a set of beliefs that they know are false because of the simple fact that these people believe their own lies. They are legends in their own minds.