From Guns.com:

The state Senate on Wednesday approved a measure to amend the U.S. Constitution to spread California gun control mandates coast to coast.
 
The Democrat-controlled body easily passed Senate Joint Resolution 7 in a 24-11 partisan roll call, sending it to the California Assembly for likely concurrence. The measure is the first legislative step to the adoption of a U.S. Constitutional amendment, calling for a rare Convention of States to study the proposal.