Answer:
1. Effect on perceptions of Johanna: Improves her image
This will improve her image as people will like that she wants to help working families.
Effect on perceptions of her opponent: Has no effect on his image
It will however have no effect on her opponents image as she did not mention him so people will not link his name to her campaign.
2. Effect on perceptions of Johanna: Improves her image
As before, this will improve her image as she will be associated with helping people.
Effect on perceptions of her opponent: Harms his image
The big red X will harm his image because people will associate him with a well known danger sign.
3. Effect on perceptions of Johanna: Has no effect on her image
As she is not mentioned in the ad, people will not associate the ad with Johanna so there will be no effect on her image.
Effect on perceptions of her opponent: Harms his image
Her opponent will see his image harmed because he is mentioned and and put in a negative light. People will associate him with negative things like hungry children so his image will suffer.