Generally revise laws relating to insurance coverage relating to cancer

This bill amends Montana's insurance laws to prohibit health insurers from requiring patients with advanced metastatic cancer to fail other drugs or prove a history of drug failure before covering FDA-approved prescription drugs for their condition. The provision applies only to drugs that align with best cancer treatment practices, are supported by evidence-based literature, and have FDA approval. Additionally, the bill expands group health insurance coverage requirements for state legislators, judges, and their spouses, allowing them to remain in group plans after retirement or leaving office under specific conditions. These changes directly affect health insurance companies, cancer patients, and public officials in Montana.