North Dakota Republican Sen. John Hoeven said he is working with Sen. John Thune (R-SD) to make refundable tax credits income and age-adjusted as the upper chamber continues to hash out a health care bill. Hoeven also said the tax credits need to be more robust than in the House-passed American Health Care Act. Hoeven said the tax credit issue dovetails with Medicaid because both aim to make sure low-income individuals have access to health insurance. Thune recently said the...