In Maine, Republican lawmakers are pushing two bills that would roll back parts of the state’s child labor laws. The first measure would let employers pay workers under the age of 20 a full $2.25 less per hour than Maine’s minimum wage for their first 180 days on the job. The bill would also eliminate the maximum number of hours a minor 16 years of age or older can work on a school day. The second would allow 16- and 17-year-old teenagers to work one hour later on school nights.