CONCORD â Political leaders and health care professionals urged families if they need health coverage to enroll in Affordable Care Act plans before an annual deadline hits Tuesday at midnight. U.S. Rep. Annie Kuster, D-N.H., said the substance abuse coverage and expansion of Medicaid allowed under the ACA have played a critical role in the number of opioid overdoses likely going down in New Hampshire for the third straight year. “I encourage all Granite Staters who are not yet covered for 2021 and those who already get coverage through the ACA exchange to visit HealthCare.Gov as soon as possible to sign up for care or shop around and ensure that you and your family are enrolled in the plan that best suits your needs,” Kuster said.