A great song, poem, painting, movie, etc., conveys a feeling that transcends time. Even though the inspiration could be based on current events, a work of lasting importance will strike a nerve years later, or evoke feelings in people for different reasons.
Create a piece that reflects your vision of the audience's emotional reaction without being specific in your selection of words or imagery. This will give your work greater longevity and a wider audience.
"So bury all the evidence Disguise yourself plead innocent One penalty, one consequence is sure Your jury they will recognize the lies, the lies, the lies, the lies
I want justice I want you overthrown..."