This is an analogy about doing two things at the same time, then later denying that you did one of them.

I am going to deny one of the things I did, and claim I did the other. Rose, living in reality, is going to keep correcting me, pointing out that I did BOTH things.

Rose is correct(:

This analogy is about some Obama supporters who say their vote for Obama supported his economic policies, but not his war escalations.