President Trump on Sunday ordered U.S. flags to half-staff as "mark of solemn respect" for the victims of weekend mass shootings in El Paso, Texas and Dayton, Ohio. "Our Nation mourns with those whose loved ones were murdered in the tragic shootings in El Paso, Texas, and Dayton, Ohio, and we share in the pain and suffering of all those who were injured in these two senseless attacks," Trump said in a proclamation released by the White House. "We condemn these hateful and cowardly acts," he added. "Through our grief, America stands united with the people of El Paso and...