SUPERIOR, Ariz. (AP) – The wife of Democratic presidential candidate Bernie Sanders plans to meet with Apaches protesting a planned copper mine near Superior.

Sanders’ campaign says Jane Sanders will meet with the San Carlos Apache Tribe and activists at the Oak Flat campground Sunday afternoon. She’ll also tour areas that are culturally significant to Apaches.

The visit comes about a week before Arizona’s presidential primary election.

Bernie Sanders introduced a bill in the U.S. Senate last year to reverse a land exchange that cleared the way for the mine.

U.S. Sen. John McCain had attached a provision to a defense bill transferring U.S. Forest Service land including Oak Flat to Resolution Copper Mining in exchange for 5,300 acres the company owned elsewhere.

Apaches and others have been occupying Oak Flat in protest.