EXCLUSIVE — Sen. Bill Cassidy (R-LA), chairman of the Senate’s health committee, has launched an inquiry into the administration of Gov. JB Pritzker (D-IL) over its handling of a recent data breach that exposed the private health information of 700,000 state residents.

Cassidy is seeking detailed records from the Illinois Department of Human Services after leaving sensitive health-related information on a publicly accessible website for more than three years and delaying notification to affected individuals, according to a letter sent Tuesday by the senator to the Pritzker administration and obtained by the Washington Examiner.