President-elect Donald Trump is set to break a key campaign promise by asking Congress rather than Mexico to pay for a wall on the border between the two countries, sources in his transition team told US media.
Mr Trump vowed in June 2015 that he would construct a wall on the border of the US and Mexico - and importantly, he claimed that he would get their southern neighbours to fit the bill.
"I would build a great wall - and nobody builds walls better than me, believe me - and I'll build them very inexpensively," he said during his campaign announcement speech.
"I will build a great, great wall on our southern border - and I will have Mexico pay for that wall. Mark my words."
In October 2016, Mr Trump changed his tune slightly, saying Mexico would reimburse the US for the expense of constructing the wall.
Those original comments were a hallmark of Mr Trump's entire presidential campaign - but now he appears to have backtracked significantly, with reports suggesting he will try to get authorisation to construct the wall using US funds.
Mr Trump's transition team has suggested it will have the authority to build the wall thanks to a law made in 2006. It is unknown whether that is the case.