Progressives in the Democratic Party are outraged after 13 Democrats voted against an amendment that would have allowed Americans to buy cheaper prescription drugs from Canada, saying it’s a sign that Big Pharma has too much power in the party.

The amendment was unlikely to pass, but critics say that’s why it should have been a safe way for Democrats to show their support for combating high drug prices.

Large majorities of Americans think that prescription drug prices are too high, and support measures to lower them. A Kaiser Family Foundation poll from last September found that 71 percent supported importation of medicines from Canada.

The amendment, drafted by Sens. Bernie Sanders of Vermont and Amy Klobuchar of Minnesota, would “establish a deficit-neutral reserve fund relating to lower prescription drug prices for Americans by importing drugs from Canada.” It would have amended the Senate budget resolution passed early Thursday morning that brings Obamacare a step closer to being repealed.