Campaign finance in the United States is about how people and organizations can spend money on campaigns during elections. When you go to vote during an election, you are usually deciding who you want to be elected as the leader of your country. Campaign finance is about all the money that is spent by candidates and organizations to try and get elected. Organizations can donate money to candidates as a way to help them get elected, and candidates can also use that money to pay for things like advertisements and other services that can help them get elected. It’s important to make sure that all the money spent on campaigns is legal and is used to help candidates who the people in the country think should be elected.