As the federal investigation into Florida Rep. Matt Gaetz continues into the summer, sources tell ABC News that Gaetz's one-time wingman has been steadily providing information and handing over potential evidence that could implicate the Florida congressman and others in the sprawling probe.Former Seminole County tax collector Joel Greenberg, as part of his ongoing cooperation with prosecutors, has provided investigators with years of Venmo and Cash App transactions and thousands of photos and videos, as well as access to personal social media accounts, sources said.
