Well, if you take Daniel's 62+7 weeks(sevens) from
Daniel 9:24-26 as 483 prophetic years(360 days/prophetic years) or 476 yrs 25 days from the time the decree was issued to rebuild the temple(March 5,444BC), that would put the Annointed One's entry at March 30, 33AD.
So 7 days after Palm Sunday would give April 6, 33AD or 1970 years and 13 days from this Easter.
I think President Bush was thinking about the time of Christ's birth rather than resurrection. I'm surprised no one caught it.