There should not be a need for "term limits," even for the Presidency. Voters get what they want, and always can vote for the new kid on the block.

If you REALLY want folk to get-in-then-get-out of Washington, what will do that is the elimination of the Congressional and Presidential Pensions. That would make the role of "elected offical" back to what the Founding Fathers had in mind - citizens who get involved in government, and then go home and let someone else take over the reins. The "pension" aspect is what has created "professional politicians."

The candidate(s) who say, "I want to end the Congressional and Presidential pensions," no matter what party (if any) they espouse, get my vote without question.