A former state lawmaker whose testimony under a plea deal about a taxpayer-funded mail business scheme helped prosecutors land the conviction of a former Tennessee House speaker has been sentenced to eight months in prison. Former state Rep. Robin Smith, a Republican who had pleaded guilty to one count of honest services wire fraud more than 3 1/2 years ago, said during her sentencing hearing that she had “failed the trust of the public,” the Chattanooga Times Free Press reported. “My mom and dad raised me to be much better than this,” Smith, 62, said Friday in Nashville federal court before U.S. District Judge Eli Richardson.