Illinois is experiencing big early voting turnout with three weeks left before Election Day. The state Board of Elections says over 480-thousand mail-in ballots have been returned and logged so far. Officials say more than 175-thousand people have participated at the polls. An ISBE spokesman says that those who have received mail-in ballots may still vote in-person if they surrender the mail-in ballot at the polling place. Those mail-in ballots will then be canceled.