Here’s good news to the cause of good government. West Virginia Sen. Robert Byrd, styled by partisan Democrats as the “conscience of the Senate” and by those who are less biased as the last troglodyte in the body, could be defeated in his bid for his umpteenth term in the Senate. He’s up for election in 2006, and the latest polling in West Virginia indicates that an attack of sanity and judgment may, at last, be hitting an electorate that has routinely elected the 87-year-old Byrd to the Senate eight times with never less than 59 percent of the vote....