Inside Sen. John McCain's (R-Ariz.) complicated relationship with President Donald Trump and his own Republican Party. A look at McCain's life and politics, from prisoner of war in Vietnam, to choosing Sarah Palin as his vice presidential running mate, to his dramatic vote against the GOP's health care bill.

FRONTLINE and NPR investigate the humanitarian and economic crisis in Puerto Rico after Hurricane Maria, examining how the federal response, Wall Street and years of neglect have left the island struggling to survive.