Donald Trump Says Immigration Speech Coming Wednesday in Arizona

He tweets "big crowds, looking for a larger venue."

The announcement comes after a week in which his language has sometimes shifted on illegal immigration, leading members of Trump's campaign to come out trying to explain his stand, and Trump himself blaming the media for suggesting he's softening his hardline approach on the subject.

"This is a guy who's been very consistent on no amnesty, no legalization, for folks who have been coming to the country illegally," he said.

But then Thursday night in an interview with CNN, he seemed to reverse that by ruling out legal status for undocumented immigrants who remain in the country.