"TELL SENATORS: Filibuster the Estrada Nomination!" cries the Web site of People for the American Way. The subject is President Bush's nomination of Miguel A. Estrada to a seat on the U.S. Court of Appeals for the D.C. Circuit. Democratic senators may not need much encouragement. With the Estrada nomination due to come to the Senate floor today, they are contemplating a dramatic escalation of the judicial nomination wars. They should stand down. Mr. Estrada, who is well qualified for the bench, should not be a tough case for confirmation. Democrats who disagree may vote against him. They should not deny him a vote.

Senators have on occasion staged filibusters on judicial nominees, but none has ever prevented a lower-court nominee's confirmation, the White House says. And that's good. It's hard enough to get swift Judiciary Committee action and floor votes for judicial nominees. The possibility of a filibuster probably checks rash or overly partisan nominations; one can imagine candidates so wrong or offensive that the tactic would be justified. But a world in which filibusters serve as an active instrument of nomination politics is not one either party should want.

Mr. Estrada's nomination in no way justifies a filibuster. The case against him is that he is a conservative who was publicly criticized by a former supervisor in the Office of the Solicitor General, where he once worked. He was not forthcoming with the committee in its efforts to discern his personal views on controversial issues -- as many nominees are not -- and the administration has (rightly) declined to provide copies of his confidential memos from his service in government. Having failed to assemble a plausible case against him, Democrats are now arguing that this failure is itself grounds for his rejection -- because it stems from his own and the administration's discourteous refusal to arm Democrats with examples of the extremism that would justify their opposition. Such circular logic should not stall Mr. Estrada's nomination any longer. It certainly doesn't warrant further escalating a war that long ago got out of hand.