DETROIT (AP) — Global Citizen is turning to cities as it looks to break through what it sees as widespread political gridlock hindering large-scale action on its goal of ending extreme poverty worldwide. The nonprofit advocacy group has rallied the private sector and foreign dignitaries to solve humanitarian challenges together, driving millions of dollars toward replenishing international aid and eradicating polio since 2008. But Global Citizen co-founder Simon Moss said Thursday it is local officials who are increasingly joining traditional international players in shaping whether communities are equipped to tackle urgent crises.