Mattis defends Mexico border deployment in first troop visit

President Donald Trump's politically charged decision to send U.S. troops to the Mexico border came ahead of U.S. midterm congressional elections last week, as Trump sought to strengthen border security as part of a crackdown on illegal immigration.Trump's supporters, including Republicans in Congress, have embraced the deployment."It's very clear that support to border police or border patrol is necessary right now," Mattis said, noting that that was the assessment of the Department of Homeland