Stevenson identifies himself as an "Eisenhower Republican," saying the GOP was more moderate and the tax rates more progressive in the 1950s.
He said economic inequality is one of the main issues that drew him to the Wall Street protest.
"The middle class in America is disappearing," he said.
His past protest experience includes participation in a march for women in Washington, D.C., in 2004.
A social-media fueled plan to #OccupyWallStreet brought hundreds of protesters to Manhattan's financial center starting Saturday, Sept. 17.
|Owner of ClintonKaine.com wants $90,000|
|Whole Foods still suffering one year after price scandal|
|News anchor Anthony Ponce quits to become a Lyft driver|
|Powerball jackpot hits $422 million, 8th largest ever|
|Bill O'Reilly criticized for White House slavery comments|