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- PBS News
Harris has 4-point lead over Trump in final PBS News/NPR/Marist election poll
2 посилання 
Harris and Trump Battle to the Wire in Swing States, Times/Siena Polls Find - The New York Times
3 посилання- Axios
Shock poll: Harris grabs last-minute Iowa lead over Trump
2 посилання - Reuters
Harris tops Trump in latest Iowa poll, marking turnaround -Des Moines Register survey
2 посилання - today.yougov.com
It's a close race in battleground states, new Times/SAY24 polling finds | YouGov
3 посилання - Des Moines Register
Iowa Poll: Kamala Harris pulls ahead in state Donald Trump won twice
3 посилання