Democrats deserve applause for making ethics reform the first legislative thrust of the 110th Congress.That Congress needs cleansing is part of the reason that Democrats now control both houses. They inherit the role of sanitizer even though members of their party contributed to the mess.On the first day of the new congressional session, the House passed a series of rule changes prohibiting representatives and their employees from accepting gifts or travel from lobbyists and from traveling in corporate aircraft.In the stench lingering behind favors spread around Washington by imprisoned lobbyist Jack Abramoff, the crackdown is refreshing. But it doesn’t address the core problem.Corr...