Democratic Rep. Katie Porter successfully pressed the Centers for Disease Control and Prevention chief during a congressional hearing on Thursday to agree that the agency will pay for testing for the novel coronavirus.

The exchange came after President Donald Trump, while addressing the nation on Wednesday night, incorrectly implied that coronavirus patients could access free treatment. Many insurers have said they will pick up the cost of coronavirus testing for some policyholders, but not the treatment — and a test or treatment that is covered is not necessarily free.