They don’t make a decision based on justice. They make them based on their political views.
That's true up to a point.
You'll find "conservative" justices occasionally agreeing with liberal justices.
But notice how the four hard core liberal justices ALWAYS vote for the liberal side.
No liberal justice ever seems to "flip".
And to think that Souter was supposed to be "conservative".
Once on the court, he became as bad as Ginsberg.