How politically skilled are you?

While visiting England, President George Bush is invited to tea with the Queen. George asks the Queen what her leadership philosophy is.
She says that it is to surround herself with intelligent people.George asks how she knows if they're intelligent. "I do so by asking them the right questions," says the Queen. "Allow me to demonstrate.
She phones Tony Blair and says, "Mr. Prime Minister. Please answer this question: "Your mother has a child, and your father has a child, and this child is not your brother or sister. Who is it?"
Tony Blair responds, "It's me, Your Majesty" "Correct. Thank you and good-bye “says the Queen. She hangs up and says, "Did you get that George?"
“Yes Your Majesty. Thanks a lot. I'll definitely be using that!"   Upon returning to DC, George decides he better put his
advisors to the test. He summons Dick to her residence and says, "Dickie, I wonder if you can answer a question for me."    "Why, of course, Sir . What's on your mind?"   "Uhh, your mother has a child, and your father has a child, and this  child is not your brother or your sister. Who is it?"   Dick hems and haws  and  finally asks, "Can I think about it and get back to you?" George  agrees,  and Dick leaves.  
Dick immediately calls Snow, and they puzzle over the question for several hours, but nobody can come up with a legitimate answer. Finally, in desperation, Dick calls Condie and explains his problem.
"Now look here Condie, your mother has a child, and your father has a child, and this child is not your brother or your sister. Who is it?"    Condie answers immediately, "It's me, of course, you idiot." 
Much relieved, Dick rushes back to George and declares, "I know the answer, Sir! I know who it is! It's Condie!"

And George replies in disgust, "Wrong you fool, it's Tony Blair"