President Donald Trump’s order on Tuesday to rescind and rewrite federal water regulations not only coincides with his conservative agenda but also could cut his costs as an owner of a dozen U.S. golf courses, again raising concerns about conflict of interest in the White House.

The directive to reconsider the 2015 “Waters of the U.S.” rule, which formed part of a larger elaboration of the Clean Water Act, is a win for critics of the Environmental Protection Agency who say it gives the federal government too much power over waterways.