Countdown with Keith Olbermann: Worst Persons 9.27.2011

Worst Persons – UC Berkeley Republicans, an Obama heckler and Joe Arpaio

Find out why the College Republicans at UC Berkeley are WORSE; the heckler at President Obama’s fundraiser in Los Angeles is WORSER; and Sheriff Joe Arpaio of Maricopa County, Ariz., is the WORST PERSON IN THE WORLD for Sept. 27, 2011.