Madison, Wis. (Learfield) - Wisconsin could become the 28th state to require persons to show ID before they can register to vote, or even cast a ballot. Republican leaders have promised to push the voter ID bill through after they won back majority control of the Legislature in the November election. The voter ID requirement was passed three times while Democrat James Doyle was Wisconsin governor. He vetoed it each time. The current bill is co-authored by State Representative Jeff Stone of Greenfield and state Senator Joe Leibham of Sheboygan. It includes a stricter standard, requiring a photo ID of the voters. Eighteen states require voters only show an ID -- not necessarily one with a photo. Republicans say this is a way to combat voter fraud, but Democrats say there is no evidence of widespread fraud. They say all the new requirement would accomplish is making it harder for people to vote.