House, 6

Political prognosticators peg the race in Pennsylvania's Sixth Congressional District as one of the tightest in the country. And it's easy to see why. In 2004, district voters supported Sen. John Kerry for president, but Republican incumbent Rep. Jim Gerlach defeated Democratic challenger Lois Murphy by 7,000 votes. Now Murphy is back for another round in the ring, and Gerlach is fighting to hold on to a seat that is key to keeping his party in control of the House. The candidates, who have each raised about $1 million, are slugging it out over issues such as the environment, minimum wage laws, and homeland security. And both say that the war in Iraq is high on constituents' lists of concern.