A handful of governors urged U.S. senators on Thursday to help Obamacare customers by injecting billions of dollars in federal funding into the market, but were divided over the longevity of such support and how much authority states should have in crafting their own healthcare plans.

They stressed from the outset of a Health, Education, Labor and Pensions Committee hearing that they believed it was necessary for Congress to appropriate cost-sharing reduction subsidies, which are mired in a legal battle and currently being paid each month by the Trump administration. Without them, premiums would rise by roughly 20 percent more for next year in addition to already expected increases, according to the Congressional Budget Office.