The top Democratic presidential candidates are locked in a close race in the 2020 Iowa caucuses, with Senator Elizabeth Warren slightly ahead of Senator Bernie Sanders, Mayor Pete Buttigieg of South Bend, Ind., and former Vice President Joseph R. Biden Jr., according to a New York Times/Siena College poll of likely Democratic caucusgoers.
Ms. Warren appears to have solidified her gains in the first voting state while Mr. Buttigieg has climbed quickly to catch up with Mr. Sanders and overtake Mr. Biden, the onetime front-runner.
Elizabeth Warren 22%
Bernie Sanders 19%
Pete Buttigieg 18%
Joe Biden 17%
Amy Klobuchar 04%
Kamala Harris 03%
Andrew Yang 03%
Cory Booker 02%
Tulsi Gabbard 02%
Tom Steyer 02%