Congress has no term limits. The 22nd Amendment limits the President to two terms, but the Supreme Court held in U.S. Term Limits v. Thornton (1995) that states cannot impose term limits on their congressional delegations — any such limit requires a constitutional amendment.
Proposals vary: 12-year limits in House and Senate, 6 House terms / 2 Senate terms, or longer caps. Polling consistently shows broad public support across parties.
Defenders of term limits argue they reduce career-politician dynamics, regularize turnover, and disrupt seniority-based capture. Opponents argue they discard accumulated expertise, empower lobbyists and unelected staff, and reduce voter choice.