Exit polls are conducted as voters leave their polling place, thus the name "exit" polls. For the states that hold caucuses, like Iowa and Nevada , exit polls are called entrance polls, simply because interviewers talk to voters as they're entering their polling place instead of exiting. Since exit polls are more common than entrance polls, we will focus our explanation on them. How are exit polls conducted? He says, "All the information I have is that people who fill out the exit polls are honest with us.

Source: CNN February 03, 2020 18:56 UTC