Atlanta Mayor Andre Dickens has helped advance the city’s broader effort to build or preserve 20,000 affordable homes by 2030. | Elijah Nouvelage/Bloomberg via Getty Images As rents and homelessness climbed in San Diego over the last decade, leaders watched in frustration as affordable housing projects took months to get approved. The longer a project dragged on, the more expensive it became.   Housing in America is notoriously slow and complicated to build, so San Diego Mayor Todd Gloria decided to use one lever he had available. In January 2023, he signed an executive order to speed...