WASHINGTON (AP) — Democratic presidential candidate Bernie Sanders is spending $2 million on his first television ad campaign in Iowa and New Hampshire, casting himself as a longtime fighter against injustice and inequality.

The ad traces Sanders’ humble upbringing in Brooklyn, New York, and notes that he attended Dr. Martin Luther King’s March on Washington in 1963.

READ MORE: Vaccine Doubts Fuel Dr. Scott Jensen's Rise In Minnesota Governor Race

It tells viewers about his work as the mayor of a Vermont city and in Congress and says he’s now “taking on Wall Street and a corrupt political system.”

READ MORE: 'Perfect Timing To Go': MEA Marking One Of The Busiest Travel Weekends Of The Fall

It points to the 1 million contributors to his campaign and shows footage of his large rallies around the nation.

It’s his first ad of his campaign to challenge front-runner Hillary Rodham Clinton for the Democratic presidential nomination.

MORE NEWS: A Ride-Along With Minneapolis Police Shows How Staffing Shortages Have Officers Stretched Thin

(© Copyright 2015 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)