U.S. Term Limits

This is something that I think the United States also desperately needs.

Wikipedia summarizes it this way: "Congressional stagnation is an American political theory that attempts to explain the high rate of incumbency re-election to the United States House of Representatives. In recent years this rate has been well over 90 per cent, with rarely more than 5-10 incumbents losing their House seats every election cycle. The theory has existed since the 1970s, when political commentators were beginning to notice the trend, with political science author and professor David Mayhew first writing about the "vanishing marginals" theory in 1974."

http://www.termlimits.org/