After dropping in on Mexico's president, Donald Trump doubled down on his vow to make Mexico pay for a border wall.



With renewed bluster, Trump offered some clarity on his immigration policies Wednesday night in a speech in Arizona, renewing calls for a deportation force and pledging to build an "impenetrable" barrier on the U.S.-Mexico border.



"We will build a great wall along the southern border. And Mexico will pay for the wall, 100 percent. They don't know it yet, but they're going pay for the wall," Trump said.

Hours earlier, Trump met with Mexican President Enrique Pena Nieto in Mexico City and took a decidedly softer tone. In a tweet, Pena Nieto said after the meeting that he told Trump his country would not pay for the barrier.

Pena Nieto tweet

The tweet translates to: "At the beginning of the conversation with Donald Trump I made it clear that Mexico will not pay for the wall."

In a subsequent tweet, the Mexican president said in Spanish, "From there, the conversation addressed other issues, and developed a respectful manner."

Trump's speech in Arizona, which lasted more than an hour, followed confusion over whether Trump had softened his immigration stance. He outlined the steps he would take to crack down on immigration, a priority he has loudly stressed from the outset of his campaign that was once perceived to be a long-shot.

