“It’s not as if he just didn’t get what he wanted so he’s waving a magic wand and taking a bunch of money,” said the White House’s acting chief of staff, Mick Mulvaney, of Donald Trump’s decision on Friday—after the administration’s budget deal with Congress to end a 35-day government shutdown did not include the funding Trump sought for a wall along the Mexican border—to declare a national emergency to divert about $7 billion from federal projects, including $2.5 billion from counternarcotics programs, to build a wall that experts say will not significantly affect drug trafficking.