FILE – Employees test voting equipment at the Miami-Dade County Elections Department, Oct. 19, 2022, in Miami, in advance of the 2022 midterm elections on November 8. Top U.S. election security officials say protecting the nation’s voting systems has become increasingly more challenging. That’s due mostly to the embrace by millions of Americans of unfounded conspiracy theories and false claims about widespread fraud in the 2020 presidential race. (AP Photo/Lynne Sladky, File) FILE – Employees test voting equipment at the Miami-Dade County Elections Department, Oct. 19, 2022, in Miami, in advance of the 2022 midterm elections on November 8. Top…