(WASHINGTON) -- Tens of thousands of people are expected to descend on Washington National Mall Wednesday to commemorate the 50th anniversary of Martin Luther King Jr.’s “I Have a Dream” speech and the March on Washington that took place half a century ago.
President Obama will address the crowd from the Lincoln Memorial, as well as former presidents Bill Clinton and Jimmy Carter.
The event will also feature members of the King family, lawmakers and civil rights leaders, including Rep. John Lewis, D-Ga., who spoke at the 1963 march and will do so again Wednesday.
Below, watch a live broadcast of Wednesday's events, courtesy of ABC News:
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