The widow of former Sen. John McCain, R-Ariz., tweeted out a screenshot Tuesday of a crude message directed at her about her daughter and deceased husband. “I want to make sure all of you can see how kind and loving a stranger can be,” Cindy McCain wrote, noting that her intention for sharing the violent message was so that the writer’s “family and friends could see.” The message from Tiffany Nicole's account calls the senator, who has been repeatedly attacked by President Trump the past few days, a “traitorous piece of warmongering shit,” adding that she was “glad he’s dead.”...