(CBS) — Canadian pot company Tilray rallied 30 percent on news that U.S. Attorney Jeff Sessions would step down.

Already lifted by midterm ballot measure victories, Tilray and other cannabis companies rose further on word Sessions had resigned. The nation’s top law enforcer last January said he would work to revoke policy from the Obama administration that let states make their own rules on weed without hindrance from the federal government.

Canopy Growth and Aurora Cannabis, two other publicly traded Canadian pot companies, both rallied more than 8 percent.

Note: Read our discussion guidelines before commenting.