As state senators search for an income tax package that could command a majority vote, many of those opposed to the concept continue to assert that a tax on general income is unconstitutional in Tennessee. The last five state attorneys general have signed opinions defending the constitutionality of such a tax. The present attorney general, Paul Summers, issued the most detailed of these opinions two years ago. And he has several times appeared before legislative committees and met with legislators in private settings to reaffirm his position and answer questions. Yet, for the nearly three years in which the current...