The three candidates in a hard-fought campaign to succeed Manhattan District Attorney Robert M. Morgenthau, who is retiring at the end of the year, used every opportunity in the final days before today’s primary to garner endorsements, woo voters and reiterate the priorities they would bring to the office.

The candidates, Richard M. Aborn, a managing partner at Constantine Cannon; Leslie Crocker Snyder, a partner at Kasowitz, Benson, Torres & Friedman; and Cyrus R. Vance Jr., a principal at Morvillo, Abramowitz, Grand, Iason, Anello & Bohrer, all worked for Mr. Morgenthau at one time.