Ball said that while the economy is in recovery and the country is in "moment of existential crisis," Clinton is not the right person to inspire Americans.
"Is someone who sat on the rabidly anti-union board of Walmart for six years the right person to restore workers’ rights?" Ball asked. "Is someone who recently took $400,000 to give two speeches at Goldman Sachs the person we need to wrest control of the asylum back from the banking inmates?"
Instead, Ball argued, the American people need someone more passionate about the middle class, like Warren.
"In a time when we badly need to be inspired and rallied and made to believe that America can once again be true to the American dream, we need someone who is mission-driven, who is clearly passionate, living and breathing and feeling in their bones the plight of the worker, of the middle class," Ball said.
Watch the video via MSNBC: