Head of Largest California Union Arrested on Charges of Grand Theft, Tax Fraud

An airport worker in support of the Service Employees International Union (SEIU) leaves a flower at an altar as they protest and call on California Governor Gavin Newsom to support vaccine priority for essential workers during the Covid-19 pandemic at Los Angeles International Airport (LAX) in Los Angeles, California, on Feb. 4, 2021. Patrick T. Fallon/AFP via Getty Images

SAN FRANCISCO—The head of California’s largest union was arrested on Friday, a day after the well-known activist was charged with grand theft and tax fraud.

Alma Hernandez, the executive director of SEIU California, and her husband Jose Moscoso were charged on Thursday with allegedly underreporting some $1.4 million of income between the 2014 and 2018 tax years.