President Donald Trump foreshadowed some of his coming executive orders during his inaugural address.Chip Somodevilla /Pool/AFP/Getty ImagesPresident Trump on Inauguration Day said he would declare a national emergency at the southern border.This comes after Trump confirmed plans in November to use the military for deportation efforts.Economists and researchers said Trump's deportation plans could have negative economic impacts.President Donald Trump said at his inauguration that he will declare a national emergency at the US-Mexico border, ramping up his immense focus on immigration in his second term."I will send troops to the southern border to repel the disastrous invasion of our country," he said during his inaugural speech at the Capitol.