President Donald Trump threatened Friday to seal the US-Mexico border “entirely” if Congress does not approve billions of dollars in funding for a wall. In a burst of early morning tweets, the president said the alternative to funding his controversial wall project would be total separation from Mexico — including making US car companies pull out their factories based on the other side of the frontier. The threat yet again upped the ante in a political row that has led to a partial shutdown of the US government and seems set to dominate the start to the third year of Trump’s presidency.
