Transfer 
Similar to testimonial, transfer depicts the candidate helping others or being endorsed by a group. He is depicted in the community or acting in a patriotic manner. 
http://www.youtube.com/watch?v=Clhv-ya9JJo 
In this video, Christie is shown around the community, helping out at schools, and shown near the New Jersey Board Walk. He wants people to know that he is reliable and helpful in the community. 
http://www.youtube.com/watch?v=pW6Pw50ux18
Bill Haslam is running for governor of Tennessee and in this ad he is talking to a group of people in a farmer's market and surrounded by food and friendly farmers. He is shaking people's hands and taking pictures with kids.