Supreme Court Justice John Paul Stevens, the court’s staunchest liberal, said Saturday he “will surely” leave the bench before President Obama leaves office, though he has not yet decided if he will retire this year or the next. Stevens turns 90 this month, making him the oldest justice by over a decade. He was appointed by Gerald Ford in 1975, and has remained cagey about exactly when he plans to step down. "I will surely do it while he's still president," Stevens said. "I can tell you that I love the job and deciding whether to leave it is a very difficult decision.” Meanwhile, Jeffrey Toobin, who wrote a recent profile of Stevens in The New Yorker, says he expects him to retire this month.