IA - 2020 Senate Races: Theresa Greenfield 42% - Joni Ernst 40% - (NY Times/Siena 09/24/2020) chart & more info

Joni Ernst
Theresa Greenfield
  • Greenfield +2

IA - Trump vs. Biden: Joe Biden 45% - Donald Trump 42% - (NY Times/Siena 09/24/2020) chart & more info

Donald Trump
Joe Biden
  • Biden +3

IA - Trump vs. Biden: Joe Biden 47% - Donald Trump 47% - (Des Moines Register 09/22/2020) chart & more info

Donald Trump
Joe Biden
  • Trump 0

IA - 2020 Senate Races: Theresa Greenfield 45% - Joni Ernst 42% - (Des Moines Register 09/19/2020) chart & more info

Joni Ernst
Theresa Greenfield
  • Greenfield +3

IA - 2020 Senate Races: Joni Ernst 50% - Theresa Greenfield 45% - (AARP/Fabrizio Ward/Hart Research 09/10/2020) chart & more info

Theresa Greenfield
Joni Ernst
  • Ernst +5

IA - Trump vs. Biden: Donald Trump 47% - Joe Biden 45% - (AARP/Fabrizio Ward/Hart Research 09/10/2020) chart & more info

Joe Biden
Donald Trump
  • Trump +2

IA - 2020 Senate Races: Theresa Greenfield 45% - Joni Ernst 43% - (Data for Progress 08/06/2020) chart & more info

Joni Ernst
Theresa Greenfield
  • Greenfield +2

IA - Trump vs. Biden: Donald Trump 44% - Joe Biden 42% - (Data for Progress 08/06/2020) chart & more info

Joe Biden
Donald Trump
  • Trump +2

IA - 2020 Senate Races: Joni Ernst 48% - Theresa Greenfield 47% - (Monmouth Univ. 08/05/2020) chart & more info

Theresa Greenfield
Joni Ernst
  • Ernst +1

IA - Trump vs. Biden: Donald Trump 48% - Joe Biden 46% - (Monmouth Univ. 08/05/2020) chart & more info

Joe Biden
Donald Trump
  • Trump +2

IA - 2020 Senate Races: Theresa Greenfield 46% - Joni Ernst 43% - (Des Moines Register 06/15/2020) chart & more info

Joni Ernst
Theresa Greenfield
  • Greenfield +3

IA - Trump vs. Biden: Donald Trump 44% - Joe Biden 43% - (Des Moines Register 06/15/2020) chart & more info

Joe Biden
Donald Trump
  • Trump +1

IA - 2020 Senate Races: Joni Ernst 43% - Theresa Greenfield 42% - (PPP 05/04/2020) chart & more info

Theresa Greenfield
Joni Ernst
  • Ernst +1

IA - Trump vs. Biden: Donald Trump 48% - Joe Biden 46% - (PPP 05/04/2020) chart & more info

Joe Biden
Donald Trump
  • Trump +2

IA - Trump vs. Biden: Donald Trump 51% - Joe Biden 41% - (Des Moines Register 03/07/2020) chart & more info

Joe Biden
Donald Trump
  • Trump +10