Despite running a campaign with about twice the money and twice the staff of Governor Mitt Romney's presidential bid, President Barack Obama's campaign under-spent Romney's on IT products and services by $14.5 million, putting the money instead into building an internal tech team. Based on an Ars analysis of Federal Election Commission filings, the Obama campaign, all-inclusive, spent $9.3 million on technology services and consulting and under $2 million on internal technology-related payroll.
According to the article they hired their own team and used open source tool and cloud based infrastructure. By contrast Romney spent a bundle on outside vendors.
The Romney campaign spent $23.6 million on outside technology services—most of it on outside "digital media" consulting and data management. It outsourced most of its basic IT operations,
Link to Original Source