Responding to late night host Jimmy Kimmel’s scathing criticism a night earlier, Sen. Bill Cassidy said Wednesday morning that he is “sorry” that the ABC comedian does not understand legislation he is cosponsoring to repeal and replace Obamacare.Cassidy (R-La.) famously appeared on “Jimmy Kimmel Live” last May, proposing a “Jimmy Kimmel test” for any healthcare reform, a response to an emotional monologue that the late night host delivered about his son, who had surgery for a rare heart condition shortly after his birth.