Supreme Court allows severe partisan gerrymandering to continue

[*michaelsean*]

I'll take a stab, but could be way wrong. You are asking them to declare that something is unfair to one party over another. Parties are private entities, not a part of the government. Deciding that one party having an advantage over another and fixing it isn't in their jurisdiction. There is no right for a party to have a certain chance of winning. It's hard for me to explain what I'm thinking here.