The Supreme Court must be impartial regardless of legislative and executive political mudslinging of the time. That's the whole point of different branches of government.
If SCOTUS made the decision after seeing Trump and Biden debate, or knowing Republicans will control both houses, then they aren't doing their job as they should. There's a reason why juries are encouraged not to watch TV or media that would cloud their decision, and the same should apply to judges.
People forget the bloody whole point of checks and balance!