A new KFF tracker highlights key federal policy actions during President Trump’s second term that concern issues related to mental health and substance use. The second Trump administration has emphasized law-and-order strategies and scaled back several mental health and substance use-related services, while also continuing some treatment-focused initiatives. The tracker can be viewed in multiple ways, including chronological order of policy actions and by category (Mental Health; Opioids/Substance Use Disorder; Federal Infrastructure/ Data/Guidance; and Gun Violence).