Republicans and outside groups have spent nearly $105 million on ads in Iowa ahead of the 2024 caucuses. This figure is expected to grow by at least another $7.5 million before January 15th. Nikki Haley's super PAC, SFA Fund Inc., has emerged as the top spender in Iowa, investing $25 million. Haley's campaign has spent $4.6 million on Iowa ads so far and has another $1.3 million booked for the closing weeks. The pro-DeSantis super PAC, Never Back Down, which spent $17.6 million on Iowa ads in 2023, has canceled its ad reservations amid internal issues and a shift to grassroots efforts.