President Joe Biden is giving states a year to check whether millions of low-income Americans are still eligible to receive health insurance through their government’s Medicaid program.

Arkansas is planning to do it in half that time.

GOP Gov. Sarah Huckabee Sanders, former President Donald Trump’s press secretary, is pushing to remove people from “government dependency,” and this month her Medicaid agency started sending letters to tens of thousands of Medicaid recipients asking for proof of income and a host of other details to show they are still eligible for the insurance program.

The high-speed effort in Arkansas, where more than a third of the state’s 3 million people are on Medicaid, offers an early glimpse at the potential disruption in store for the country as states comb through their Medicaid rolls for the first time in three years. These verifications, once routine, were suspended during the pandemic, and their resumption nationwide could lead to as many as 15 million people, including 5.3 million children, losing their health insurance.