In his first one-on-one television interview since being sworn in as the 45th president of the United States, President Donald Trump told ABC News anchor David Muir that Mexico would be paying for the proposed border wall and that negotiations between the two nations would begin “relatively soon.”

“Ultimately, it will come out of what’s happening with Mexico … and we will be in a form reimbursed by Mexico, which I’ve always said,” Trump said.

During the interview, which took place at the White House this morning, Trump said that Mexico would pay the U.S. back “100 percent.”

He confirmed that U.S. taxpayer dollars would be used to start the construction but said reimbursement would follow.