Donald Trump 'Considering' a Trip to Mexico

Donald Trump is "considering" a trip to Mexico, two senior-level campaign sources confirm to ABC News.

The sources say details are not ironed out on any potential visit.

Last week, during a town hall with Fox News' Sean Hannity, the Republican presidential nominee was asked about Mexican President Enrique Pena Nieto's recent comments that he would meet with the next U.S. president, regardless of who it is.

"I'd meet with him," Trump said of Nieto. "Absolutely, I'd meet with him."

Nieto had said of Trump, "I have never met him. I can't agree with some of the things he has said, but I will be absolutely respectful and will seek to work with whoever becomes the next president of the United States."

Nieto said in March that he would not pay for a border wall under any circumstances.

The news of the potential visit comes just a day before Trump is expected to give a formal speech focused on immigration. Trump is scheduled to speak Wednesday evening in Phoenix, joined by his running mate, governor Mike Pence, where he will lay out his immigration plans.