Senate Democrats introduced legislation on Thursday to place term limits on Supreme Court justices, reigniting debate around the issue championed by Democrats in the House and the Senate.
Do it when there's a chance of it passing, otherwise it's clear you're just looking for votes in the next election for reasons you'll never follow through with.
This puts the vote on record so that people have some idea who they're electing. Because it likely won't pass, you won't learn who really supports the idea, but you'll definitely find out who opposes it. That's very valuable information, and can only truly be learned by a vote.