“The ability to target ads locally is important to any political candidate using any medium, but Obama’s campaign took local targeting to a new level. Before several state primaries, and then again before the general election, the campaign customized online ad creative for residents of different states. During the primaries, display ads with tailored messages showed up on news sites in Texas, Ohio, Pennsylvania, and others. Later in the year, a variety of state-specific ads appeared, telling people to “Register to Vote for Barack Obama and Other

 Candidates For Change,” and providing the last day they could register in their state in order to vote.