Uphill battle against Trump’s emergency

The 1976 act invoked dozens of times by US presidents, and now used by Trump to build his US-Mexico wall, has never been successfully challenged, write Alison Frankel and Tom Hals.

Democratic lawmakers, states, and others mulling legal challenges to US President Donald Trump’s national emergency declaration to obtain funds to build a US-Mexico border wall face an uphill and probably losing battle in a showdown likely to be decided by the conservative-majority Supreme Court.