You're right on

Like many of the amendments to our Constitution, the 20th's time has passed. Short of repealing it, though, perhaps this is the next best thing:

http://politicalticker.blogs.cnn.com/2008/06/16/second-president-bush-floats-prospect-of-a-third/

Would put us one step closer to making the Bushes the ruling family of the United States, thus ensuring long-term security from the terrorists that continue to lurk.