Everyone assumes that they know how ACB would line up on certain issues. Just keep in mind that there have been some famous instances where a Justice performed quite differently than the appointing President expected. Justice Souter is an example. On a much larger scale, conservative Republican Dwight Eisenhower named Earl Warren as Chief Justice, and he led the Court during one of the most “liberal” periods in the Court’s history. Eisenhower referred to it as one of his biggest mistakes in office.
What a lot of people have a difficult time grasping is that the Court doesn’t rule on laws or policies in a vacuum. The Court decides cases. And the specific facts of those cases often drive the decision-making. At bottom, the Court does not make sweeping or philosophical pronouncements. The Court decides the cases brought before it, and leaves the interpretations, extrapolations, and applications of those decisions to others... until another case comes along.