Newt's targeting lower courts.
Did you read the whole article? He explains the dangers of letting someone do what Newt suggests: Eliminating judgeships whilst a judge is living. If you could eliminate a bench whenever you wanted and kick the judge out, then you could eliminate that seat and then just recreate it at will. Think of the tyranny that could be imposed if courts could be dissolved and then reconstituted at will. You’d basically have a situation where whenever the opposing party is in power, they could just purge their opponents from the judiciary. That’s why in order to remove a judge, you should have to impeach them and convict them.