Actually, I don't put much stock in the number of times a president has invoked executive privilege as some sort of sneakiness barometer since the need/desire to claim it is totally dependent upon who's controlling Congress. It would make sense that Clinton had to trot it out often since for 6 of his 8 years he was at the mercy of the GOP in Congress. Ditto for Bush...I think all (certainly most) of his EP claims were in the last two years when the Dems ran the joint. Don't look for Obama to need it for at least two more years (hopefully). All three branches do what they can to protect their turf from the other two, and in general, I think the executive branch gets walked on most often so my sympathies usually lie there. In a nutshell, I don't think it's any of Congress' damn business what goes on behind closed doors at the White House (Obama's or Bush's) any more than the White House needs to know the details of every shady back door deal in Congress.