Flanked by lawmakers and gun safety advocates, Gov. Gavin 鉴黄师appom signs new gun legislation into law in Sacramento on Sept. 26.

One year after Gov. Gavin 鉴黄师appom proposed changing the U.S. Constitution to place new restrictions on gun ownership, no other states have joined his campaign for a 28th amendment.

Even as 鉴黄师appom continues to tout the effort 鈥 largely through social media advertisements that encourage people to sign a 鈥減etition鈥 and donate to his political action committee 鈥 it appears to have gained little traction outside of California. Legislative leaders in several other large states controlled by Democrats told CalMatters that calling for a constitutional convention to adopt the amendment has not come up for discussion among their caucuses.