Presidents get elected to run the nation. Some days that means knowing how to heal it.

For the first time since winning the White House, President Barack Obama faces such a moment Tuesday at Fort Hood. After a shooting that left 13 people dead and 29 wounded on the bustling Texas Army post, it is Obama’s job to offer some comfort, if not answers…

It is his time to take on the healer-in-chief role that can help shape a presidency at a time of national tragedy.