all governmental bodies are political. What the founders tried to do was have them operate at different time scales, the House short, the Senate longer, the Federal Courts the longest. This more or less accomplished a similar goal as the hot issues of one decade usually (though obviously not always) cool with the passage of time. I'm not really sure there is any better way to accomplish political distance than time. I would actually go the other way, The real issue is each party trying to put progressively younger and less experienced people on the court. I'd make the minimum age for nomination 60. Eliminates super long tenures and means everyone who comes up will at least have a real life record to look at.