After every census, legislatures around the country draw up new boundaries for congressional districts…and for their own. "Gerrymandering" is the way partisan majorities guarantee they can stay in power. Today the US Supreme Court took up a case from Wisconsin, which reapportioned in 2011. In the following election, Democrats won more votes -- but Republicans won 60 of 99 seats. Journalist David Daley is author of a book with the subtitle, "Why Your Vote Doesn't Count." He was at today's hearing.