As Americans gird themselves for the sound and fury of a Supreme Court confirmation “fight,” they should prepare to hear one poll-tested expression repeated with Pavlovian consistency: “extremism.” The label could be applied to any number of conservative policy preferences, but Democrats seem especially prepared to direct the epithet at conservatives' belief that Roe v. Wade was wrongly decided. On its face, this is a sound political decision. Senate Democrats cannot prevent Republicans from confirming the next Supreme Court justice, so the party's best bet is to motivate its voters by implying that the new Court will strip them of their right to access abortion services. That's a message to which Democratic voters are very receptive, but there is a thin line between motivation and fanaticism. The pro-choice party that once stood in opposition to the outright prohibition of abortion has begun to make a fetish of that procedure.