How do Exit Polls take Early Voting into Account n/t?

[MadBadger]

[Perky]

1. They Don't

[The Velveteen Ocelot]

2. They don't.

So take 'em with a grain of salt.

[tritsofme]

3. They sometimes conduct phone polls to identify early voters.

I don't know if these media polls have done so.

[Drunken Irishman]

4. I don't think they did, according to CNN's exit polls.

At the bottom of their page:

Special Notes
• Exit polls are a survey of selected voters taken soon after they leave their voting place. Pollsters use this sample information, collected from a small percentage of voters, to track and project how all voters or a specific segments of the voters sided on a particular race or ballot measure. Because of the nature of caucuses, these polls are conducted as voters enter a caucus venue and are known as entrance polls. How to read entrance or exit polls
• Candidates who have dropped out of the presidential race may still be included in exit and entrance polls

Nothing about phoning voters to see if they voted early.