Jefferson City. Mo. ? A judge struck down Missouri’s new voter identification law Thursday as an unconstitutional infringement on the right to vote.

The law required voters to show a federal or Missouri-issued photo ID at the polls. Cole County Circuit Judge Richard Callahan said that was an unconstitutional burden on voters because the paperwork required to get those IDs is not free. The right to vote is “a right and not a license,” the judge wrote.

Callahan said the requirement is a particular burden to women, the poor, the undereducated and the elderly. Missouri law requires those getting or renewing a driver’s license to show they are lawfully in the country, generally with a birth certificate or passport.