A Republican lawmaker who was insulted by Dr. Anthony Fauci during a heated congressional hearing this week could have the last word, following his spat with President Joe Biden’s top medical adviser over his financial disclosures, and plans to introduce legislation designed to provide transparency.

Senator Roger Marshall of Kansas pressed Fauci during Tuesday’s Senate Health, Education, Labor, and Pensions Committee hearing on the COVID response, prompting an angry reaction from the embattled national health bureaucrat.

“As the highest-paid employee in the entire federal government,” the senator asked, “yes or no, would you be willing to submit to Congress and the public a financial disclosure that includes your past and current investments?”