The official strike of Janitors for Justice in Los Angeles began on April 3, 1990. The janitors marched and held demonstrations during the daytime for the 3 weeks. To help their cause, many religious leaders, community leaders, and politicians joined the action of the janitors and supported their protests. The archbishop of Los Angeles, Cardinal Roger Mahony, held a special mass for the janitors. Also, mayor Richard Riordan joined the campaign by voicing his support for the janitors and their union. The janitors in Los Angeles stayed on strike until April 22. By this time, they had reached a contract that guaranteed at least a 22% raise over the next three years.