Voters in 12 key presidential election swing states have already been exposed to a large dose of campaign advertising, with 82% reporting having seen a campaign ad on television, compared with 62% of non-swing-state voters. … For the most part, swing-state voters say the ads they have seen generally reinforce what they were already thinking about the candidates (70%), rather than changing their views (8%). [cont.]
Jeffrey M. Jones, Gallup