Deluca and Dafis, and challenger Carla Caraballo, sought the endorsement during Monday night's committee meeting.
All three are seeking the primary nomination for the two seats up for grabs this year. Along with the seat held by Deluca, who is also Maplewood mayor, the second seat held by TC Member India Larrier is open as Larrier has chosen not to run for re-election.
The endorsement is key in that it gives those who receive it a party line spot on the June 6 primary ballot and access to Democratic Committee funding.
Although Caraballo did not receive the endorsement, she and any other candidate can still run in the primary. The deadline to enter is April 3.