Read this article by Renae Merle entitled How a payday lending industry insider tilted academic research in its favor. It explains how payday-loan industry lobbyists bought (and sometimes wrote) research from supposedly independent academics purporting to show that payday loans don't harm consumers.
Oh, and by the way, the payday-loan industry's lobby group "held its 2018 meeting at the Trump National Doral Golf Club near Miami and plans to meet there again this year."