BUSTED: Trump caught tweeting old photos in post hailing 'the start' of his border wall
Donald Trump at a rally in Ottumwa, Iowa (Evan Guest/Flickr)

President Donald Trump, who ran for president on a pledge that Mexico would pay for his border wall, was busted on Wednesday claiming that work had begun on his wall.

"Great briefing this afternoon on the start of our Southern Border WALL!" Trump tweeted.

As Buzzfeed fact-checked, this was not actually the start of Trump's wall, but a repair effort that was started back in 2009 to fix a portion of existing fence that was built in the 1990s.

"Although the existing wall has proven effective at deterring unlawful cross border activity, smuggling organizations damaged and breached this outdated version of a border wall several hundred times during the last two years," CBP said when announcing the project.

As yet, construction has not yet started on Trump's border wall.

And to-date, Mexico has been adamant that they will not be paying for his wall.