INDIANAPOLIS (AP) _ Indiana's top lawmakers are creating a task force to review the state's “A-F'' school grading system following the revelation former state schools superintendent Tony Bennett changed the grading formula for a Republican donor's charter school.
 
  Republican Senate President Pro Tem David Long and Republican House Speaker Brian Bosma announced Friday the creation of an independent task force to review the school grading system.
 
  Bennett resigned his job as Florida's schools chief Thursday after emails obtained by The Associated Press were published. Those showed his efforts to change the school grading formula for the Christel House charter school in Indianapolis.
 
  Long said Tuesday he would seek an independent audit of the grading system. Democratic state schools superintendent Glenda Ritz says her office is conducting an internal review.