Sen. Peter Welch (D-Vt.) said Wednesday he'd back President Trump's push to pursue a "most-favored nation" drug policy at Wednesday's Axios Future of Health summit. Why it matters: Bipartisan support will be necessary for Congress to codify Trump's plan into law at a time when a majority of Americans are at least somewhat worried about being able to afford prescription drugs. Trump's proposal would bring America's drug prices more in line with what other developed nations pay. What they're sa