Summary: Americans witnessed acts of traumatic violence this week: two killings of innocent black men by police officers, caught on video, and the fatal mass shooting of Dallas cops, during a demonstration against police impunity. Global Grind's Brittany Lewis helps us try to put the events in context. <br><br>Then, The Donald clashed with members of the #NeverTrump movement on Capitol Hill, and came out of the tussle looking incompetent as hell. We explain, and discuss the ongoing GOP power struggle. <br><br>And we discuss why the Obama administration's new finalized rules on Arctic Drilling are getting something of a chilly reception from environmentalists.
