KLOBUCHAR: Why do prescription drugs cost more in the U.S. than in Canada? How come it's against the law for Medicare to negotiate for lower prices? Why do drug companies make billions of dollars getting people hooked on opioids? The big pharmaceutical companies, they think they own Washington. Well, they don't own me. I'm Amy Klobuchar, as your president I'll hold drug companies accountable and bring down the cost of prescription drugs.