Article snippet: MORE on Friday declared a national emergency to bypass Congress and spend roughly $8 billion on barriers along the southern border, a big step toward building his long-promised wall that also comes with significant political and legal risk. Trump's move, announced in a rambling, improvised address from the Rose Garden shortly after signing the declaration, will launch a fierce constitutional battle in the courts with lawmakers and outside groups who say the president overstepped his authority. “I am going to be signing a national emergency,” Trump said after a long introduction that touched on trade, China, Syria and the caravans of immigrants that Trump made a political issue of ahead of last fall's midterm elections. “It’s a great thing to do because we have an invasion of drugs, invasion of gangs, invasion of people,” the president said in seeking to justify the need for an emergency declaration. Trump predicted the move will be challenged in federal court, but said he would eventually prevail. “I could do the wall over a long period of time. I didn’t need to do this, but I’d rather do it much faster,” Trump said, a concession his critics seized upon to argue an emergency does not exist on the southern border. Speaker MORE (N.Y.), the top two Democrats in Congress, said they would use “every available remedy” to overturn the emergency declaration. “The president’s unlawful declaration over a crisis that does not exist does great violence to our Constitution an... Link to the full article to read more