MADISON, Wis. (AP) -

The state Department of Transportation wants to manufacture cheaper IDs for voters that couldn't be used for any other purpose.

Wisconsin law requires DOT to give people free photo IDs for voting. The Milwaukee Journal Sentinel reported Tuesday that agency officials say as a result fewer people are paying the $28 fee for an ID card, causing a drop in revenue.

DOT officials included a plan in their 2017-19 budget request to Gov. Scott Walker to begin producing IDs stamped "voting purposes only" with fewer security features that are found on other ID cards. The plan says the agency hopes that will encourage people to pay the $28 for a full-fledged card, generating additional revenue for building and maintaining roads.