Toobin suspects that the marriage equality ballot initiatives will influence future Court rulings:
The votes will give us the best picture of where the country is on same-sex marriage. The snapshot will be imprecise, of course. All four states are generally Democratic in their orientation, so they are not a true cross-section of country. But given the Court’s history, even the more liberal justices may be reluctant to impose same-sex marriage on the country if the people—the voters—repeatedly say that they do not want it. The polls predict close races in all four states. The results will echo well beyond their borders.
Recent Dish on the marriage equality campaigns here.