Repealing Obamcare would cut $5.5 billion per year in funding for fighting the opioid abuse epidemic, according to new research touted by Senate Democrats trying to save the law.

Democrats said that repealing the law without a replacement would endanger the fight against opioid abuse, a battle that has received significant bipartisan support in Congress. The statements come the same day the Senate plans a series of votes on a budget resolution that would start the effort to repeal Obamacare.