INFOGRAPHIC: Obama, Romney Final Ad Spend
Getting and spending: US election money wars – Channel 4 News
Obama, Romney both topped $1B - POLITICO
U.S. elections 2012 - Obama campaign spending March 2012 | Statista
Obama Takes in a Record $150 Million, But McCain Narrows Gap in Some Polls - WSJ
Barack Obama 2008 presidential campaign - Wikipedia
The Science Behind Those Obama Campaign E-Mails - Bloomberg
How Money Affects Elections | FiveThirtyEight
The 2012 Election: Our Price Tag (Finally) for the Whole Ball of Wax • OpenSecrets
The Crazy Cost of Becoming President, From Lincoln to Obama – Mother Jones
U.S. elections 2012 - Obama campaign spending 2011, by category | Statista
How much money is behind each campaign? - Washington Post
How the Presidential Candidates Use the Web and Social Media | Pew Research Center
Obama outspends Romney on online ads - CNNPolitics
Obama, campaigning in Georgia, warns of threats to democracy | AP News
How much time is Obama spending on his reelection campaign? - The Washington Post
The Internet's Role in Campaign 2008 | Pew Research Center
Illuminating 2020 Report: The 2020 General Election Campaign Advertising on Facebook – Illuminating
President Barack Obama's First Two Years: Policy Accomplishments, Political Difficulties
Obama outspends Romney on online ads - CNNPolitics
:max_bytes(150000):strip_icc()/GettyImages-114529522-5947d8335f9b58d58a7c3df1.jpg "Obama Campaign Cost: 2012 Presidential Election")
Obama Campaign Cost: 2012 Presidential Election
Breakdown: How Campaigns Spend Their Millions - ABC News
Obama outspends Romney on online ads - CNNPolitics
Obama's Spending: 'Inferno' or Not? - FactCheck.org
R.I.P. positive ads in 2012 election - POLITICO
