Campaign advertising is when a person or company tries to get people to support their ideas or beliefs by making ads that you see on TV, in newspapers, on the radio, and on the internet. Companies or people who want to influence the opinions of people will often use campaign advertising to try and get their message out. They might make ads that talk about their ideas, or that show pictures or videos of people who support them. These ads can help convince people to vote a certain way or support a certain cause.