Donald Trump on Sunday announced he would make a "major speech" on immigration in Arizona Wednesday.

The announcement, which was made on Twitter, comes after a week of differing statements about immigration, Trump’s signature campaign policy, and whether he would deport all of the nation’s estimated 11 million undocumented immigrants.

Republican National Committee Chairman Reince Priebus said on Sunday’s "Meet the Press" that Trump would be clarifying is position on immigration soon, but did not name a date.