U.S. President Donald Trump has made immigration a clear priority as he gears up for his re-election in 2020. After shutting down the government in December in a bid to fund his U.S.-Mexico border wall, Trump is now threatening an unprecedented tariff hike on Mexican imports in the hopes of getting Mexico City to stem the increasing number of Central American migrants showing up at Washington's southern doorstep. However, combined with the president's ongoing disputes with other key U.S. trade partners, a full-blown trade war with Mexico could be the final straw that pushes the United States into a recession. ...