The Washington state House has passed a measure allowing 16- and 17-year olds to pre-register to vote when getting a driver's license.

Under the bill passed Thursday, those choosing to pre-register would become registered voters upon turning 18. Bill supporters said the measure would make it easier for young people to vote. Opponents called it a political stunt that would result in minors accidentally being mailed ballots.

The bill passed by a vote of 55-42, with one Republican joining a united Democratic caucus to vote in favor.