U.S. Sen. Amy Klobuchar speaks about price hikes for EpiPens, the emergency drug injectors for severe allergic reactions, at Children's Hospital on Wednesday, Aug. 24, 2016, in Minneapolis. Klobuchar, a Minnesota Democrat who has worked to contain prescription drug price increases and whose 21-year-old daughter carries an EpiPen because of severe nut allergies, is one of several members of Congress demanding more information on why EpiPen prices have soared less U.S. Sen. Amy Klobuchar speaks about price hikes for EpiPens, the emergency drug injectors for severe allergic reactions, at Children's Hospital on Wednesday, Aug. 24, 2016, in Minneapolis.