Senate Majority Leader Harry Reid became the latest Democrat to stray into rhetorical trouble Tuesday, botching statements on three subjects in one news conference—including the fragile health of the chamber's most senior members. The Nevada Democrat reported that one of them, Sen. Edward Kennedy, D-Mass., was absent because he was receiving a new round of treatment for his brain cancer. Asked if the cancer was in remission, Reid replied, "As far as I know, it is, yes." Kennedy's office refused to confirm Reid's comments or make any statement in response, the public silence a classic Washington disavowal. Reid was then...