Washington state lawmakers are already starting to count on revenue from the legalization of marijuana.

The state House approved a bill Wednesday night that would use marijuana tax revenue to expand early learning. Democratic Rep. Ruth Kagi says she can't think of a better use for the money.

Marijuana remains illegal under federal law, and federal officials have not yet decided whether to try and block implementation of the legalization measure. Washington is moving ahead with plans to develop a network of state-licensed growers, processors and retailers.

Republican Rep. Gary Alexander says it's too early to start dedicating marijuana dollars, since the state doesn't know how much it will raise.