As we approach the 25th anniversary of the 9/11 terrorist attacks, I want to take a moment to remember the heroic leadership of former New York City Mayor Rudy Giuliani.

I was a New Yorker at the time of the attacks and had witnessed his leadership firsthand during my years as a member of the NYPD.

September 11, 2001, was one of the darkest days in American history. In the difficult days that followed, Mayor Giuliani provided the calm, steady, and reassuring voice New Yorkers—and our nation—needed to help guide us through the tough days that followed.

His leadership during that moment in history should never be forgotten.