A Question

One of the questions Democrats intend to ask Judge John Roberts during his confirmation hearings is whether or not he considers the Supreme Court decision in Roe v. Wade settled law. Now, Democrats, and those left of center in general, tend to believe in the doctrine of the Living Constitution which holds that the Constitution evolves in line with the emerging standards of society or something like that. Given this position and Democrats' support (with a few notable exceptions, like Harry Reid) for infanti- abortion rights, how can John Roberts possibly answer questions pertaining to Roe v. Wade in a way that could possibly satisfy the Democrats on the Senate Judiciary Committee?