A new Kaiser Family Foundation/Cook Political Report poll of the Democratic presidential race in four battleground states:
PENNSYLVANIA: Biden 27%, Warren 18%, Sanders 14%, Harris 4%
MICHIGAN: Warren 25%, Biden 19%, Sanders 15%, Buttigieg 7%
WISCONSIN: Warren 22%, Biden 17%, Sanders 10%, Buttigieg 6%
MINNESOTA: Warren 25%, Klobuchar 15%, Biden 14%, Sanders 13%

