Nope, not true, because it doesn't jive with my new theory on the anti-christ... In my household we often talk about 'antipotal birthdays'. (If you think about the calendar as a circle, the antipotal date is the one directly opposite on the circle.)
The anti-christ, it seems to me, should be born on the antipotal christmas, which is June 25th.
Bush was born on July 6th, so therefore he can't be the anti-christ.