New York (CNNMoney) - The nature of campaigning is to make promises. The nature of governing makes it hard to keep all those promises. And so do unforeseen events, like recessions.
That may be why even those who broadly favor the kind of tax reform that Mitt Romney is proposing - lower tax rates, fewer tax breaks - worry that his $5 trillion plan might not deliver all that he's promised.
Watch CNN's coverage of Tuesday's presidential debate starting at 7 p.m. ET on CNN TV, CNN.com and via CNN's apps for iPhone, iPad and Android. Web users can become video editors with a new clip-and-share feature that allows them to share favorite debate moments on Facebook and Twitter. Click here for 13 reasons to watch the debate only on CNN.FULL STORY