Democratic state Senate candidate Andrew Gounardes on Monday was formally endorsed by the Working Families Party, the labor union SEIU 32BJ and Councilman Mark Treyger.

“These endorsements demonstrate the growing momentum of our community-centric campaign,” he said in a statement. “Having the support of progressive stalwarts like WFP, 32BJ, and CWA is a clear sign that South Brooklyn is ready for change. The race in District 22 is an incredibly important one, as it could mean the difference between a Republican or Democratic majority in the State Senate. I am honored to be endorsed by these vital organizations.”

Gounardes is running for the Brooklyn Senate district represented by Republican Martin Golden and faces Ross Barkan in a Democratic primary on Sept. 13.

The district has long been a target for Democrats to flip, but Golden has nevertheless been able to hold the seat, making him one of two Republican lawmakers to continue representing a New York City Senate district.

Still, Democrats have pointed to what they expect to be a wave year for them in November, along with policy-related issues, such as the failure to extend the New York City speed camera program last month, as having an impact in the race.

The union endorsement is also potentially helpful for Gounardes, given the size of 32BJ.

“Right now, more than ever, New York State needs champions of that will fight for workers’ rights,” said Hector Figueroa, President of 32BJ SEIU. “Union members are focused on electing progressive candidates to represent working New Yorkers in Albany. In the face of unprecedented attacks on working families, we are endorsing candidates who will fight for good jobs and help more New Yorkers join and form unions. Together we will champion legislation to protect immigrant communities, defend voting rights and access, achieve bail reform, and stand up for policies to protect the environment.”