One actually had a comparison of the potty-note handwriting and some other note.
While it is hard to tell because the note is in block test, the top part does NOT appear to be Bush's handwriting, while the bottom part does. (The capital "I's" are different, in particular.)
I suspect Condi was asking the question and Bush is responding.
(sigh)I guess the president will have to call a press conference and explain. That is a new low in the media. Can you imagine the 50 or so reporters attending? I mean how many questions can you ask about the president taking a leak!