We all know by now that despite winning nearly 3 million more votes than Donald Trump, Hillary Clinton lost three key states — Wisconsin, Pennsylvania, and Michigan — by a total of about 80,000 votes. That was just enough to hand Trump the electoral college victory, and the election. Given Trump’s narrow margin of victory in these manufacturing-heavy, traditionally Democratic states, it’s understandable that the post-election conversation has focused on whether his campaign promise to help the working class by generating more manufacturing jobs is feasible. But for many voters in these states — namely, single mothers — other issues, such as tax policy and childcare costs, may be much more instrumental.