see my comment 20 - it sounds like he withheld the 20% max long term rate on the option exercise/sale, which if he didn't know for sure how much he would give to charity was reasonably prudent.
that said, I don't know what his AGI was in 2004 and thus don't know what the safe-harbor withholding would have been.
"that said, I don't know what his AGI was in 2004 and thus don't know what the safe-harbor withholding would have been."
but for publicity purposes it would not be a helpful headline if he had safe harbored and ended up owing a couple million - VP underpays taxes by 2 million, etc.......there is a political element to this either way.