Joe Biden, Bernie Sanders lead in new poll ahead of Iowa caucuses
Like other recent polls, the survey showed the candidates bunched together at the top, suggesting a tight finish as the caucus nears.
Democratic 2020 U.S. presidential candidate and former Vice President Joe Biden smiles as Senator Bernie Sanders (I-VT) speaks during the seventh Democratic 2020 presidential debate at Drake University in Des Moines, Iowa, U.S., January 14, 2020(photo credit: REUTERS/SHANNON STAPLETON)
