Nancy Reagan spent decades protecting the legacy of her husband, but some of President Ronald Reagan's famous political advice appears lost among the White House candidates who embrace him as a guiding light.
It's known as the 11th Commandment: Thou shall not speak ill of any fellow Republican.
The former first lady's death Sunday closed the Reagan era at a time when crude insults and incivility have shaped the party's 2016 presidential primary.
It's a clashing image, compared with the sunny "Morning again in America" theme Reagan employed a generation ago.
The 40th president didn't author the advice about restraint on the campaign trail, but he recognized the GOP needed to avoid infighting that could lead to a splintered party and a November defeat.