The Santa Clara County Registrar of Voters Thursday approved the circulation of petitions for the recall of three Cupertino Union School District board members.

Frustrated parents mounted the recall campaign against board members Lori Cunningham, Sylvia Leong and Phyllis Vogel after they voted last month to close two district schools and consolidate a third. Cunningham, a Los Altos resident, was the target of a failed recall attempt earlier this year for prioritizing remote learning over reopening schools amid the pandemic.

To qualify for the ballot, recall organizers must collect signatures equal to 15% of registered voters in CUSD, approximately 11,500, by early April. Formal signature collection began Friday.

Recall advocates said they intend to canvass every home in the district to gather enough signatures to force a special election.