This chapter discusses differences between presidential and congressional campaigns. Presidential races are larger in size and scope and see more spending. They are also more competitive than some congressional races. Campaigns require significant funding, which can come from public subsidies, individual donations, PACs, and the candidates' own money. Campaign finance is regulated by laws and enforced by the FEC, which places limits on certain types of contributions and expenditures. Winning elections requires effective campaign strategies that consider primaries, general elections, targeted voters, issues, media exposure, and other factors.