Prominent Republicans and gun rights advocates helped elicit a White House turnabout this week after bristling over the administration's characterization of Alex Pretti as responsible for his own death because he lawfully possessed a weapon. Pretti was the second person killed this month by a federal officer in Minneapolis. His death produced no clear shifts in U.S. gun politics or policies, even as President Donald Trump shuffles the lieutenants in charge of his militarized immigration crackdown. But important voices in Trump's coalition have been criticizing inconsistencies in some Republicans' Second Amendment stances since the killing. On Tuesday, Trump weighed in again on the fatal shooting, saying protesters "can't have guns."

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Today in history: On Aug. 25, 1916, Woodrow Wilson signed the National Park Service Organic Act, establishing the National Park Service as an agency of the U.S. Department of the Interior to maintain the country's natural and historic wonders and "leave them unimpaired for the enjoyment of future generations."