✔ 最佳答案
It is impossible to separate politics from the judicial completely. Politics do shape the Supreme Court in a way. We elect the president and our Senators, whom in turn nominate and confirm justices, thus politics has influence over the Court.
But, they are also shielded from politics, at least once they get on the bench. They are appointed for life and it is hard to impeach a SCOTUS justice. Thus they can rule on cases without fear of political backlash.
But if you are referring to the ideological divide on the court (i.e. 4 conservatives, 4 liberals, and 1 moderate), this is nothing new. There have always been divisions in the court. Some are more originalist/strict interpretation justices, others are activist justices that find new meanings in the Constitution according to their ideology. Some justices are more liberal, others more conservative. Some are more for states having more power (i.e. federalists), others have no problem granting the federal government more powers.