Not many presidential appointees have served through most of the Bush presidency. (Not many will have served through his entire presidency, since the vetting and confirmation processes now take many months more than they should.) One who has is Dana Gioia, head of the National Endowment for the Arts. Please read this well-deserved tribute to Gioia's work from Thomas Hibbs of Baylor University. I have been particularly impressed by Gioia's efforts to encourage performances of Shakespeare's plays throughout the country.
Corrected on 12/4/08: An earlier version of this article incorrectly identified Dana Gioia.