In today's Pharmaceutical Executive Daily, President Trump signs an executive order imposing 100% tariffs on imported patented pharmaceuticals under Section 232, with significant carve-outs for companies that have struck MFN pricing deals or committed to domestic manufacturing, Pfizer and BioNTech halt a large post-marketing Covid-19 vaccine trial in healthy adults aged 50 to 64 after failing to hit enrollment targets, and a new analysis examines how the industry is adapting strategically to a fundamentally transformed U.S. pricing environment.