WARREN, Mich. (AP) — While the growing expansion of casinos and state-sanctioned sports betting steal the spotlight, state lotteries have nearly doubled in size over the past two decades, driving a multibillion-dollar wealth transfer from low-income U.S. communities to powerful multinational companies. A nationwide investigation of state lotteries by the Howard Center for Investigative Journalism at the University of Maryland found that lottery retailers are disproportionately clustered in lower-income communities in nearly every state. The investigation’s analysis of cellphone location data shows that the people who patronize those stores come from the same kinds of communities.