Around the world, public leaders are confronting a growing distrust in government. In these divided times, a mayor’s work becomes increasingly important. As the governing body closest to their residents, they are often the ones left reminding their communities of what we have in common—and why those things are worth fighting for. So how can local leaders proactively take the lead on building social solidarity, and rebuilding trust in government, from the bottom up? We looked to Istanbul, Turkey for a bold answer. Istanbul Mayor Ekrem İmamoğlu is addressing this increasingly global challenge in his city with his Bloomberg Philanthropies’ Mayors Challenge-winning project, Pay-It-Forward, which leverages municipal data to match residents in need with community members that can provide support. From helping neighbors pay utility bills during the pandemic to rallying global aid during a national earthquake disaster, this city-led platform brings people together to solve challenges. S...