[6] Mackler founded Northern California Climate Mobilization, is a longtime teacher and union activist with the American Federation of Teachers in Hayward, California and is director of the Mobilization to Free Mumia Abu-Jamal.
[8][9] He supports temporary rise to a $15 minimum wage and a massively expanded role for unions.
[citation needed] Mackler supports a transition to power the United States with 100% renewable energy, and "guaranteed jobs at top union wages" for all people who would lose jobs as a part of a theoretical transition.
[9] Mackler has expressed support for the American government to provide free public health care and education, including the abolition of private insurance.
[8] Mackler supports abolition of borders and "amnesty, legalisation and equal rights for all immigrants".