I'm not sure I buy that. Sure, if everyone in Congress terms out at the same time, and your next Congress is full of fresh faces, you absolutely run into that problem.
As long as things are staggered, senior legislators will mentor junior legislators, and that institutional knowledge will be passed on.
And I don't think we're talking about limiting representatives and senators in the same way we do for the president. I would say it would be fair to allow them to serve for something on the order of 15-20 years.
But sure, I think there are many other problems that matter more: winner-takes-all elections that essentially require you have only a two-party system, the electoral college, and (as you mention) the primary system.
As long as things are staggered, senior legislators will mentor junior legislators, and that institutional knowledge will be passed on.
And I don't think we're talking about limiting representatives and senators in the same way we do for the president. I would say it would be fair to allow them to serve for something on the order of 15-20 years.
But sure, I think there are many other problems that matter more: winner-takes-all elections that essentially require you have only a two-party system, the electoral college, and (as you mention) the primary system.