 Former U.S. Secret Service agent Timothy Miller there. You've sent us so many texts and WhatsApps on this story. Here are just a few of them. Nayeli listening in Oslo says Americans should stay united in advocating for gun control. Such assassination attempts know no boundaries. B.W. Bocri listening in Freetown in Sierra Leone says it is sad and unfortunate to hear of election violence in the United States. A country once...