It's harder to get much more credible than the President of the United States. Errors in his work would be heavily scrutinized and reflect poorly on the position. Obama uses collective appeals, suggesting the solution begins with "our" actions and things "we" can do together. His appeals are effective in making us like him because in the end, we all just want to belong, with one another. A tone of kindness is the key to making these collective appeals work. Barack Obama isn't suggesting that we all come together under his banner in order to win him more votes; We're doing it "for our children and our grandchildren." Obama brings emotion into the mix by bringing up his family history. He is related to both those who enjoy white privilege and oppressed blacks from Africa, thus a wider variety of readers can relate to him on a human-to-human level. Intellectually speaking, "A More Perfect Union" does a decent job of bringing up historical events and correlating their importance to the points presented. Personally, I think his appeals could've used more subtlety as to not be so obvious and, at times, cliche. But Obama is a skilled writer who, although highly-educated, caters his writing to his perceived audience.
In the "Ally's Choice" podcast, the hosts seemed unprofessional at times.That may seem like a negative criticism, but I believe that actually works in their favor. In a setting where the listener isn't face-to-face with the speaker, the audience will tend to respond better to the more human aspects of the mysterious voices coming from the lightbox. While working as an emotional appeal, the funny banter and shower-esque singing works against the professional nature. The podcast seemed to maintain too much of a neutral position. The hosts could have very well delved into the nitty gritty of what it means to be a Negro, should this woman be allowed to do claim this ethnicity due to the ignorance of others, and why the situation is relevant to our society. Instead, for time or other unknown constraints, the recurrent theme was to go on about how it was just a sticky situation.