Beau Biden, former Delaware Attorney General and the oldest son of Vice President Joe Biden, died Saturday at Walter Reed National Military Medical Center in Washington, D.C. after battling brain cancer.

Beau Biden was 46 years old.

Below are remarks from Vice President Biden:

"It is with broken hearts that Hallie, Hunter, Ashley, Jill and I announce the passing of our husband, brother and son, Beau, after he battled brain cancer with the same integrity, courage and strength he demonstrated every day of his life.

The entire Biden family is saddened beyond words. We know that Beau’s spirit will live on in all of us—especially through his brave wife, Hallie, and two remarkable children, Natalie and Hunter.

Beau's life was defined by service to others. As a young lawyer, he worked to establish the rule of law in war-torn Kosovo. A major in the Delaware National Guard, he was an Iraq War veteran and was awarded the Bronze Star. As Delaware’s Attorney General, he fought for the powerless and made it his mission to protect children from abuse.

More than his professional accomplishments, Beau measured himself as a husband, father, son and brother. His absolute honor made him a role model for our family. Beau embodied my father's saying that a parent knows success when his child turns out better than he did.

In the words of the Biden family: Beau Biden was, quite simply, the finest man any of us have ever known."

Below are remarks from Delaware Governor Jack Markell:

"Carla and I are heartbroken for Hallie, his children, his parents, his siblings, and the entire Biden family. Beau spent his entire career in the service of his country and his state. He was an outstanding Attorney General, lawyer, soldier, and father. I feel privileged to have served with him and Delaware is a better place thanks to him.

Beau was also a friend. He was unfailingly interested in the well being of Carla, my kids and my extended family. My entire family is shattered by his death.​"

In honor and remembrance of Beau's life, the Governor has directed that the U.S. and Delaware flags be flown at half-staff."

Below are remarks from U.S. Sen. Tom Carper:

“Martha and I just heard the news that Beau had passed away after a valiant struggle. Our hearts are breaking for Joe and Jill, for Hallie and their children, Natalie and Hunter, and for the entire Biden family. Beau represented all that is good about Delaware and our country. He was the complete package – bright; hardworking; incredibly loyal to his family; a loving son, brother, husband and father, principled; handsome; well-spoken; unassuming. He had the heart of a servant, too. His future seemed to know no bounds.

I first met Beau when he was six years old. He was the son that any of us would be proud to call our own. It’s been a privilege to watch him grow up and become a leader in our state and in the Delaware National Guard. My last memory of Beau was during the Return Day Parade in Georgetown, Delaware two days after last November’s election. I was walking along the parade route shaking hands with people just as Beau passed by, standing in a National Guard vehicle, waiving at the crowd. For a moment, our eyes met, he waived to me and I to him. Then, he mouthed these words to me, ‘I love you.’ I returned them to him. And, he was gone.”

Below are remarks from U.S. Sen. Chris Coons:

“Beau Biden was an extraordinary father, husband, son, and public servant, but above all, he was a good and decent man. His passing is a great loss for his family and friends and for Delaware.

Throughout his life, Beau never shied away from doing the right thing, even when it meant doing the hard thing. Beau served his country and community with honor, and that’s how he will be remembered.

My family knew Beau as a family man devoted to his wife, Hallie, and their children, Natalie and Hunter, and as a hardworking, kind-hearted person.

Annie and I are praying tonight for the entire Biden family – for Joe and Jill, for Hunter and Ashley, and for Hallie, Natalie, and Hunter – and we know they have the support and love of their neighbors all throughout our state.”

Below are remarks from U.S. Rep. John Carney:

"Tracey and I are heartbroken. It's one of those times when you imagine if you try hard enough, the news somehow won't be true. There are no words deep enough to express our sense of loss, and there are certainly no words meaningful enough to express our sympathy to Hallie and the children, to Joe, Jill, Hunter, Ashley, Valerie, and all the family.

Beau had a warm and generous spirit. He was a truly giving person, and he appreciated the good in others in the way we all should. He leaves a legacy of service, and also a great personal legacy that calls on each of us to be more gentle in our judgments and more gracious with our thanks. He was one of the best of the good guys."