About this project

FiveThirtyEight is using data from Kantar/Campaign Media Analysis Group to show what campaign ads are being aired across the country and how much candidates and outside groups are spending on them. Ad airings are grouped by state. But because media markets do not follow state boundaries, ads listed as airing in one state may have also aired in adjoining states. For example, if a TV ad aired in the Boston market, we included that as part of the state total for Massachusetts, even though the ad would also have aired in parts of New Hampshire and Vermont. The data includes ads that have aired on local network television, national network television and national cable television. It is updated every weekday.