Washington, Jan. 12 -- The White House is reportedly preparing the ground for US President Donald Trump to declare a national emergency and has instructed the army's corps of engineers to look into its appropriations for unspent money to fund the US-Mexico border wall, which he pitched on Thursday during a visit to the border in Texas.

Negotiations with Democrats are stalemated, a compromise package mooted by a group of Republican lawmakers has failed to find traction with the White House, and with few other proposals on the table, talk of a national emergency has gained ground.

Trump himself is not averse to it as he has made it amply clear over the past few days. But he has sought to demonstrate a preference for resolving the stalemate ...