McConnell stated at the same time that the president, when writing on the proposal, will also announce national emergency at the southern border.

And at 21.40 Swedish time came the message from the White House - Trump announces national emergency.

It enables him to finance the wall himself.

The measure is extremely unusual, according to lawyer Andrew Boyle at the "Brennan Center for Justice".

Boyle told the news agency AP that several other presidents had used the measure, but never to finance infrastructure and other domestic projects voted by Congress.