FROM CNN's Jack Cafferty: Republican presidential candidate Herman Cain is breathing down Mitt Romney's neck – and much of the attention he's getting is focused on his 9-9-9 tax plan. Cain talks about this plan, and how it would stimulate economic growth, a lot. Whether you agree or disagree with Cain's tax plan, there's no … Continue reading Would Herman Cain's 9-9-9 tax plan get you to vote for him?