That last statement is all that should be required. The POTUS in power at
the time gets to nominate the judge. Ginsberg, is still an activist, but
Congress approved her nomination. As one of the Senators I heard on the
radio the other day said, it is the Presidents right to nominate, and as
long as they are qualified, they should be confirmed. He brought up
Ginsberg as an example. Their political leanings are not part of the
qualification. The fact that a President normally gets to appoint one
judge at most, keeps a balanced court. Screwed up maybe, but a balanced
bunch of screwups.
Since the election of 2000 the main stream of the US has been right of
center so Harry's claim that Judge Alito is out of the main stream is false.