Mealey's (March 12, 2021, 1:47 PM EST) -- CHICAGO — The acting secretary of Health and Human Services on March 8 defended a motion asking an Illinois federal court to dismiss the Illinois Insurance Guaranty Fund’s (IIGF) suit seeking an interpretation of the federal Medicare Secondary Payer (MSP) statute, reiterating arguments that IIGF has no standing to bring its lawsuit and the federal court lacks subject matter jurisdiction....