A FEW DAYS AGO, we learned that Private Chelsea Manning attempted to take her own life last month for the second time since being sentenced to 35 years at the U.S. military prison in Leavenworth, Kansas. The whistleblower, who provided the collateral murder video, the Iraq and Afghan war logs, and the hundreds of thousands of classified U.S. State Department cables to Wikileaks, was convicted of espionage. As I waited to vote today, I found myself thinking of her languishing in misery in isolation and incarceration. This election — particularly in its closing stages — has been dominated...