Burpelson said:
In order to remove a judge one really has a very high bar to clear, basically a high crime of such, not a disagreement to his judgment.
Article III, Section One:
"The Judges, both of the supreme and inferior Courts, shall hold their Offices during good Behaviour."
Congress can remove a judge via impeachment for any reason it wants to if they can get the votes, if enough of the members believe the judge has not acted with "good behaviour."
Impeachment is a political process, not a criminal one. If Congress believes a judge has crossed the line with his or her rulings, impeachment is always an option.
"If you will not fight for right when you can easily win without blood shed; if you will not fight when your victory is sure and not too costly; you may come to the moment when you will have to fight with all the odds against you and only a precarious chance of survival. There may even be a worse case. You may have to fight when there is no hope of victory, because it is better to perish than to live as slaves." - Sir Winston Churchill