Idaho Legislature Advances Constitutional Amendment on Cannabis Legalization

LOS ANGELES- The Idaho Senate has approved a proposed amendment to the state constitution that would grant the legislature exclusive authority over the legalization of cannabis and other substances. This measure, known as House Joint Resolution 4 (HJR 4), follows its earlier passage in the House of Representatives and is now set to be presented to voters in the November 2026 general election. ​

If ratified by a majority of voters, this amendment would preclude the possibility of legalizing cannabis through citizen-initiated ballot measures. Currently, Idaho is among the states that have not legalized cannabis for medical or recreational use.

Proponents of HJR 4, such as Senator Scott Grow, argue that the amendment is necessary to maintain legislative control over substance legalization and to uphold public health and safety standards. They express concern that external influences could lead to policy changes not reflective of Idaho’s values. ​

Opponents, including Senator James Ruchti, contend that the amendment undermines the democratic process by restricting voters’ ability to directly influence state laws. They emphasize the importance of preserving the initiative process as a means for citizens to propose and enact legislation independently of the legislature. ​

This development occurs amid ongoing efforts by advocacy groups to introduce ballot initiatives aimed at decriminalizing or legalizing cannabis in Idaho. To date, such initiatives have not secured sufficient signatures to qualify for inclusion on the ballot. ​

The forthcoming 2026 vote will determine whether the Idaho Legislature will retain sole authority over the legalization of cannabis and similar substances, thereby eliminating the potential for future voter-led legalization efforts.