With the vote happening in a few months, Alberta’s looming referendum on separatism is casting a shadow over national unity. And questions remain about how our neighbour to the south is playing in it. Separatist leaders have been talking to U.S. officials who could supposedly help their cause. Now, in an exclusive interview with Global News, U.S. Ambassador to Canada Pete Hoekstra tries to clear up the Trump administration's stance on the issue. Mackenzie Gray has more. Authorities in Turkey have detained more than 100 people including journalists and academics following anti-NATO marches as the country prepares to host world leaders for a summit this week.