President Trump plans to declare national emergency for wall

A two-month war of attrition between the president and Congress has effectively ended, but at the possible cost of a new battle.

The White House announced that President Trump would sign a border deal passed by the Senate that averts a partial government shutdown, but also that he would declare a national emergency in order to circumvent Congress and unilaterally allocate billions of dollars for his promised border wall.

Here’s how a national emergency declaration would work. It could provoke a constitutional clash between the president and Congress over control of the federal purse . Lawmakers would have two avenues of opposition: legislation, which Mr. Trump could veto, and the courts.