By Christopher Giles
BBC Reality Check

Publishedduration27 minutes agoshareSharenocloseShare pagelinkCopy linkAbout sharingRelated Topics

  • US election 2020

image copyrightGetty Imagesimage captionPresident Trump made building a wall a key plank of his 2016 election campaign

President Donald Trump is visiting the southern border in Texas to claim success in the construction of a border fence with Mexico.

The White House said his visit would "mark the completion of more than 400 miles of border wall — a promise made, promise kept…"

So how much of the border wall has Mr Trump managed to build during his term in office?