disagreement with each other, but even more important similarities, including a rising tolerance for violence. It could still shock the nation in 2009 when one man carried a loaded rifle to an Obama political rally in Arizona.20 Dozens of weapons were carried at the Black Lives Matter march in Dallas in 2016 that ended in the killing of five police officers and the wounding of seven more, as well as the injury of two civilians.21 Even more and heavier weaponry would be displayed at the rallies against the removal of Confederate statues in Houston and Charlottesville in 2017.
