Trump said his lawyers had told him the action would withstand legal scrutiny "100 percent".
Trump is taking the shutdown battle to the U.S. -Mexico border, seeking to bolster his case for a border wall after the latest negotiations with Democrats blew up over his funding demands. In the meantime, hundreds of thousands of federal workers are set to miss paychecks Friday.
Officials told Trump the Army Corps could put up 315 miles of 30-foot, bollard-style barrier in 18 months, according to NBC, which cited sources.
Today marks the 21st day of the partial shutdown that started days before Christmas over a standoff between President Donald Trump and congressional Democrats over funding for the President's long-promised border wall.
The White House has said the president's trip is created to allow him to meet with those individuals who are "on the front lines" of what they have called a "national security and humanitarian crisis". Marco Rubio (R-Fl.) telling CNBC, "If today, the national emergency is border security. tomorrow the national emergency might be climate change". But he said those options seem less likely now without Democratic backing for some money for Trump's border plan.More news: Google virtual assistant set to be on one billion devices
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A second official with knowledge of the proposal said it would fund construction of about 315 miles (500 kilometers) of border barrier. The majority has also already been obligated - meaning that it has been spent or a contract has been signed and there would be penalties for cancellation. Congressional Republicans have sounded wary of such a move and some have expressed outright opposition, while Democrats have expressed alarm.
But even some Republican lawmakers uneasy about the idea of pulling money from Army Corps projects saw few alternate options.
Rep. Peter DeFazio, D-Ore., the incoming chairman of the Transportation and Infrastructure Committee, said in an interview that rebuilding the disaster areas is "a way higher priority benefiting the American people than a wasteful wall". "It would be an incredible disservice to the American people and the economy" to divert the money to the border wall, he said. The vote was 411-7 and the measure now goes to President Donald Trump for his signature.
"If and when the president does that you'll find out how we will react", Pelosi said.