Presidential candidates net favorability rating by month

[Orser67]

Based on Huffpo's Pollster Model (e.g. Kasich). It shows a candidate's favorability ratings subtracted by their unfavorability ratings. A major piece of information missing is the percentage of people with "no opinion." The x axis labels are as close as possible to the first of the month (so e.g. April is actually based on data from March 31st).

Pretty impressive growth for Kasich.

[Orser67]

That's the problem. A lot of people haven't voted for him in the primaries because they don't know who he is. The more people know about him, the more likely they are to vote for him.

http://elections.huffingtonpost.com/pollster/bernie-sanders-favorable-rating

For a while the polling numbers definitely supported your argument, although for the last month his negatives have risen while his favorability score has remained the same.