Simple....Trump needs to issue an EO that prohibits illegals from having driving license...and all drivers license of non citizens are cancelled.
Oregon was able to muster the required signatures to get DL’s for illegals on the ballot. 2/3rds of Oregon voters voted no drivers license for illegals. Governor Brown our own bisexual Yogi, disagrees and is giving illegals drivers licenses.
Driver’s licenses are issued by states, but he could have the AG get serious about enforcing proof of citizenship requirements on employers, and prosecuting violators. That’s been on the books since 1986.