A conservative court rules based on the Republican Party platform (Citizens United, Hobby Lobby).
A liberal court rules based on the Constitution (Roe, Obergefell, Miller V. Alabama)
Yeah, see this is why I don't think we should base judicial appointments on partisan scorekeeping. All judicial appointments would ideally revolve around the credentials of the candidates themselves. Let's not kid ourselves, the majority of the people concerned with the composition of the Supreme Court couldn't give a fig about how well-grounded the judges are in their philosophical approach to interpreting the Constitution, they just want a partisan hack in a robe whose rulings would be coterminous with their own partisan preferences.