AdvertisementCory Booker Is A Stirring Speaker, Iowa Voters Say. But His Support Still Lags03:52Download AudioResumeJanuary 10, 2020Asma KhalidfacebookEmailDemocratic presidential candidate and New Jersey Sen. Cory Booker speaks at the Teamsters Vote 2020 Presidential Candidate Forum Dec. 7 in Cedar Rapids, Iowa. (Getty Images)