A three party system might work well with a major party at the center. A moderate, centrist party might be the largest of three. It could often pass needed legislation without pandering to left or right. If moderate bills lacked votes, deals could be made with left or right. Legislation could be blocked only in the unlikely event that both left and right opposed it.
How we could get there isn’t clear. Our two parties are entrenched. We haven’t seen a significant new national party in decades, and then not a party of the center. A third centrist party would need to start small: perhaps independents could form a voting block. The Problem Solvers Caucus isn’t a party, but perhaps could become one. It already votes as a block on the rare occasion that it reaches consensus. Because its members are Democrats and Republicans, they don’t often agree.
A three party system might be more stable than a two party system, avoiding policies oscillating between opposing views. It might be better at passing necessary legislation, at funding authorized programs, at protecting civil rights. We might see less partisan political posturing. I’d like to see it tried.
New NY 23rd 
A third party to actually get things done is a wonderful dream and I LOVE it! Is anyone in Congress talking about this?
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Thanks for your comment, Gary. I don’t know of any such proposal in Congress. Too many representatives put party loyalty first. Until voters make better choices, Congress is unlikely to do better.
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The Democrats ARE a moderate party.
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Years ago I was on a hike with some boys carrying a flagpole. We met a rider and joked at jousting. The horse didn’t like the look of that; it bucked off the rider and went about it’s business. Faced with important issues– funding the government, opposing insurrection, promoting justice for all, preparing for climate change — one would hope responsible politicians of any stripe with horse sense would unite.
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