WASHINGTON � The nation’s state chief justices are launching a campaign to remind voters of what used to be obvious: Judicial elections are different from those for other offices.

Voicing “grave concern” over increasingly partisan and costly campaigns, the Conference of Chief Justices � representing the top jurists in all 50 states, the District of Columbia and U.S. territories � voted Aug. 2 on measures to emphasize the “unique nature” of judicial elections. At least some of the judges in 39 states are elected.