Since his inauguration, President Trump has issued numerous executive orders that address the funding and operations of federal health agencies, including the National Cancer Institute, the Food and Drug Administration and the Centers for Disease Control and Prevention. Many of Trump’s actions could impair clinical trials, federal grants and cancer research, but some were immediately rescinded. Health advocates and political leaders are trying to navigate this confusing landscape and preserve science-based national health programs and public data. For breaking news ­and treatment updates, visit CancerHealth.com.