I know it takes time and effort to do it, but you can't just listen to political ads. You've got to read the individual and party platform statements. They're all online, and oftentimes you get some interesting and unexpected perspectives from them. I remember reading Elizabeth Warren's, when she was running for President. Even if I could have forgiven her for lying on a state bar application, reading her platform told me I could never vote for her. These platform statements are especially important for state and local elections. The quality of these documents is often better than one would expect, mostly because they are written by staffers and campaigns think voters seldom read them, so the candidates and the campaign managers don't edit them as aggressively as they do ads.