Voting is democracy’s most fundamental right and responsibility and recent federal court rulings say you have a constitutional right to post photographs of yourself doing it. More than a dozen states have laws on the books that bar voters from photographing their ballots or even showing their ballot to another person. In the era of camera-equipped smartphones and social media, states have interpreted those laws to prohibit ballot selfies. Some states have gone a step farther and actually passed laws barring voters from posting photos of themselves at their polling stations. But in just the past four weeks, a federal appellate court in Boston and a federal trial judge in East Lansing have found laws prohibiting ballot selfies to violate the First Amendment’s protection of free speech.