President Donald Trump’s bid to lure wealthy immigrants to the U.S. with a “gold card” program could drive up home prices and worsen America’s housing-affordability crisis, according to real-estate experts and people who’ve studied similar immigration incentives in Europe.

Trump’s gold card is designed to replace the EB-5 investor visa, which provides billions in investments to American businesses. But there are some big differences.

President Donald Trump announced a controversial new immigration proposal on Wednesday, introducing the concept of a “gold card” that would provide a path for wealthy individuals to attain lawful permanent resident status in the United States.