An Arizona mining company announced Friday it will suspend shaft and drilling work at its Superior operation and eliminate about 400 jobs, saying the moves are the result of continued uncertainty around a proposed land exchange.
U.S. Sen. John McCain, R-Ariz., said if Congress were to pass the legislation calling for the land swap, the mine expansion could result in 4,000 jobs.
Opponents of the swap include the Obama administration and many Democratic lawmakers. They have argued that an environmental review should be completed before the exchange is made.
During debate in the House last fall, Democrats complained that the mining company would not have to pay royalties to the U.S. government for lucrative mineral rights that could be worth billions of dollars.