In a political campaign, building credibility is top priority. When surveyed, voters reported political outreach was most credible when in the form of a direct mail campaign. Second, third and fourth were TV, home visits and radio ads, respectively. Emails, digital ads and phone calls or texts were less credible, according to the poll.

While many candidates think digital solutions will build their credibility, it seems direct mail, for all generations, including Millennials, is the best choice. Read more about this research here: Voters Find Direct Mail Most Credible