Scalia will only leave when failing health forces him to. Quite frankly, I’m starting to wonder if the man isn’t experiencing the onset of some sort of dementia. He seems to be not giving a shit how he comes across in ways that make me wonder.
I could see Anthony Kennedy calling it quits. He’ll turn 80 in July 2016, and if he wants to spend time with the grandkids (I assume he has some; he’s got three children according to his capsule bio) while he’s still tolerably healthy, he needs to be packing up his papers.
Meanwhile, the Clinton appointees are also getting old: next year, Ginsburg will turn 80 and Breyer will turn 75. I’d be surprised if neither of them retired during Obama’s second term if he wins in November. Nixon was the last President to appoint four Justices to the Supreme Court; Obama’s got a good chance of matching that, and a slight chance of exceeding it.