Supreme Court justices have historically, and for good reasons, tended to be reclusive from media. They're definitely not like congressmen or presidents. That's because they are supposed to have an air of impartiality (yeah, I know) because they never know what might end up before them in the Supreme Court.
This is really out of line for a Supreme Court justice. I wonder if it means she is close to retirement. If they're so truly horrified and embarrassed by the prospect of a Trump presidency, maybe they should stop creating the conditions for such a thing. The Trump candidacy is a product of DC.