Dr. Anthony Fauci, preparing to end his high-profile run as chief White House medical adviser, says he is proud of his legacy but laments the vicious political climate surrounding the COVID pandemic. “I just want people to know that I gave it everything I had and didn’t leave anything on the field. I was all there,” Fauci, 81, said in an interview at his Washington, D.C., home that ran Sunday on ABC’s “This Week.” “It’s been an amazing journey that all of us have been through and still are in actually,” he added. Fauci, who heads the National Institute of Allergy and Infectious Diseases, becam…