There's no question that U.S. President Donald Trump has committed to securing the border with Mexico to keep out illegal aliens. His tough stance on immigration appeals to his supporters, as does his racial rhetoric about those he considers outsiders. His tweets attacking four minority Democratic congresswomen are keeping both Democrats and Republicans in damage control mode. But what does he gain from stirring the racial pot? With an election year coming up in 2020, everything.

From the Curio channel: News in Review.