Outgoing Arlington School Board member Sally Baird has endorsed Greg Greeley to fill her seat after she retires.

Greeley is one of three candidates, along with Barbara Kanninen and Nancy Van Doren, vying for the Democratic nomination. The Democrats’ endorsement caucus will be held on May 15 at Drew Model School and May 17 at Washington-Lee High School.

“Greg offers a needed balance to the Arlington School Board,” Baird said in a press release. “He has the depth, temperament, and experience to be a key leader on the Board as it addresses our looming capacity crisis. And I know he values — in fact, he lives — our community’s diversity. He will work to improve our school system for all of Arlington’s children.”

Baird joins state Sen. Adam Ebbin (D-30) and Del. Patrick Hope (D-47) in endorsing Greeley. Baird announced her endorsement at the Arlington County Democratic Committee’s February meeting, where she introduced him.

If elected, Greeley, a resident of Douglas Park with one adopted child enrolled in Arlington Public Schools, would become the first openly gay man on the Arlington School Board, and he would be replacing the first out lesbian elected official in Virginia history in Baird.