Looking back on a long career, John McCain lands on an important lesson about life.
Months after being diagnosed with brain cancer, John McCain delivered one of the best speeches of his long political career.
The 81-year-old Arizona senator was this year's recipient of the Constitution Center's Liberty Medal, an award given annually to an individual who exemplifies "courage and conviction" and strives "to secure the blessings of liberty to people around the globe." Recent past recipients include Rep. John Lewis, the Dalai Lama, Malala Yousafzai, and former Secretary of State Hillary Clinton.
After being introduced by former Vice President Joe Biden, McCain gave a speech that really needs to be heard by people across the political spectrum.