Donald Trump announced late Tuesday he will meet with Mexican President Enrique Pena Nieto on Wednesday, just hours before he is expected to announce his full immigration policy, the Washington Post reported late Tuesday.

Those familiar with the meeting had said Tuesday evening that security concerns and logistics of the impromptu visit were still being worked out by both parties. By 10:45 p.m. EST, Trump tweeted out the news himself.

Pena Nieto had recently invited the billionaire businessman to visit him. Trump mulled over the invitation over the weekend and decided to go ahead with it after his new campaign chairman, Steve Bannon, told his boss the move could indicate to undecided voters that he is open to a middle ground, compromise and bipartisanship arrangements.

Trump's campaign manager Kellyanne Conway clarified her boss's immigration stance Tuesday night following weeks of pundit talk the Republican nominee would only deport criminal illegal aliens and not millions of non-violent immigrants in the U.S. illegally.

"You will hear consistent Donald Trump in this way. No amnesty, no legalization, no sanctuary cities," Conway told Fox News' "O'Reilly Factor. "The people who have committed a crime are gone. And then he wants to see what we are left with. Is it 5 million? Is it 10 million? Is it 30 million? He will address that tomorrow and I think you will see one of the toughest speeches on illegal immigration in modern political history."

Trump is scheduled to lay out his full immigration policy during a speech in Phoenix, Ariz., Wednesday. His campaign had previously planned the message for last week, but bumped it, saying the nominee was still forming his stance after a meeting with Hispanic leaders.

The delay and Trump's recent ommission of the phrase "deportation force" had prompted some on the Left and the right to worry Trump was evolving to more of a moderate stance in a last-ditch effort to court Latino vote.

Trump is scheduled to hold fundraisers in California Wednesday morning, which he will follow-up with his trip to Mexico, before then returning to the U.S. for his immigration platform speech.

The Trump campaign did not return a request for comment.