Many Democrats are wringing their hands over the defeat of Sen. Joseph Lieberman, whose long-faithful Connecticut constituents rejected him for his support of the pro-war policies of President Bush. Many pundits say that despite record-low ratings for the current Republican administration the Democratic Party may self-destruct during the coming elections because it’s becoming softer on the war. We’ll have to wait until November to see if they’re right, but we can say now that incumbents should never take their constituents’ loyalty for granted.