cities, the manhattan d.a.'s office has a conviction integrity unit to investigate claims of innocence. but bragg argues it and many like it around the country are ineffective. he plans on changing that if you're sitting watching this in a prison somewhere and you're an innocent person, what hope should you take from that >> i think you should know that we're going to be looking at these matters anew with a fresh eye and mindful of the shortcomings of our system >> reporter: in addition to reform, the city will be watching as he tackles rising crime and should bragg win november's general election, he will inherit something else, the prosecution of the trump organization >> i've done a number of kind of high profile cases involving people in or near the seat of power. if they take you to a business person, if they take you to a former president, you follow the facts >> reporter: alvin bragg says if he ever