I don't think the Trump campaign runs into copyright issues if they use Stephen Foster songs at rallies -- which would work well thematically, right?
The Ow! Factor
"In fact it was a little bit frightening / Make sure you have expert timing" ~ Carl Douglas, "Kung Fu Fighting"
Racial Expressions
"I prayed for twenty years but received no answer until I prayed with my legs." ~ Frederick Douglass (who's done an amazing job)