See Candidate Page See Candidate Page See Candidate Page Joe Biden, Pete Buttigieg, Elizabeth Warren, Agriculture, Climate Climate tweets on Biden, Buttigieg, Warren 1/14/20 Several candidates -- Biden, Buttigieg, Warren -- all mentioned on the #DemDebate stage tonight how farmers can be part of the #climate solution— Zahra Hirji (@Zhirji28) January 15, 2020