What always gets ignored in a discussion of American congressional term limits is that if it were not implemented on a nation-wide basis, the potential for political disaster for those states adopting it while others don't are emormous. This is not something which states are likely to do willingly unless the citizens are really up in arms.
Any state which imposes term limits on its congressional representatives while other states don't dooms their delegation to eternal irrelevance. The members with the most seniority will get the most sought-after committee seats and chairs of committees, and that means that representatives from states with term limits will get the politically pointless scraps.
Not a philosophical response, just a pragmatic one . . .
Setanta
Agreed if term limits are imposed they must be on a national basis.