Never said he "can't be subpeonaed." I said there is "no basis" to subpeona a judge who makes a single 'bad call'. We all make unpopular decisions, especially if we alone have heard all the facts. However, if you have a judge who makes 'unpopular' decisions, after hearing the facts, time and time again; and a little research into the basis of how/why he made these decisions is 'suspect' - he should be impeached. But, everyone is entitled to a 'mistake'; lest we impeach every judge who makes a decision we may not 'like'. The judge is to be impartial, and conduct his job in accordance with the Constitution. When he ceases to conduct himself according to the oaths of office, he should and must be removed.
OK, you have had yours, now move on. :)