The announcement came shortly after a much-hyped White House meeting between Obama and Bernie Sanders, who has vowed to keep fighting for the Democratic nomination.
In the video, Obama described his vision of “the America that we all believe in” and challenged the message of presumptive Republican nominee Donald Trump.
“An America that is strong and fair and gives every child the same chance we had. Those are the values that unite us,” the president said. “Those are the values that make America great.”