The survival rate for childhood cancer has improved significantly for everybody but Black kids.

Zion Harvey, now 10, can toss a baseball, play video games and do other activities that kids love.

Ahead of the president's final State of the Union Address, Biden spoke with CNN about his life, career, and friendship with Obama, recounting how the president was supportive throughout his son's battle with brain cancer. Beau Biden, the former attorney general of Delaware, died in May at the age of 46 following a long struggle with the disease.