Barack Obama sent out a tweet on Wednesday urging people to take time from grieving the children killed in Uvalde to remember the anniversary of George Floyd’s death. The drug addict’s death in Minneapolis police custody, while resisting arrest, sparked a summer of deadly riots across the country. “As we grieve the children of Uvalde today, we should take time to recognize that two years have passed since the murder of George Floyd under the knee of a police officer. His killing stays with us all to this day, especially those who loved him,” Obama tweeted. The former president did...