So some of you who are smarter than me help me understand something... so now, according to Trump, there is a national emergency crisis on the southern border and the wall is the only thing to save our country from this crisis. And people's livelihoods are being used as bargaining chips in the ego contest between the WH and Repubs and the Dems without regard for the economic stress and hardship placed on their constituents as they continue their poliical grandstanding on the wall. Why did they wait for 2 years to declare it such a national emergency crisis when border crossing have declined? Why didn't Trump declare this national emergency in 2017 or 2018 when he had both houses and could easily get his $5B for the wall that he promised dozens of times that Mexico would pay for? Help me out here