John Carney's been watching the DNC and concludes:
The Democrats seem to be completely sold on the narrative that Clinton-era tax hikes and budget surpluses produced low interest rates and widespread prosperity that was later squandered by the Bush administration's deficits, with the end result of the financial crisis and "The Worst Recession Since the Great Depression." (Read more: Want The Truth? Every Politician Wants To Raise Your Taxes)
There’s not really any reputable economic theory that supports the idea that the combination of higher taxes and government budget surpluses leads to greater prosperity. It’s more like a shadow of a theory, something Democratic policy makers created from crib notes from respectable economic theory.