Daily Digit: 2018 midterms have become the most expensive in history

Daily Digit is the story behind the numbers that make our world work. Today we’re looking at the 2018 midterms. Over $5 billion has been raised by candidates from all parties running for the Senate or the House, making the 2018 election the most expensive nonpresidential election in American history. Democrats running for the House and Senate have raised more than Republican candidates. Who will you be voting for?