January 01, 1970 | Sunlight Foundation | News
So far, the 2016 presidential election has racked up more than $1.09 billion dollars
in spending by candidates and outside groups. Sunlight estimates that the Democratic primary resulted in about $445 million spent by former Secretary of State Hillary Clinton, Sen. Bernie Sanders and former Maryland Gov. Martin O’Malley, as well as their allied super PACs and other groups.