And then there are the other Democrats — the ones who reject the entire premise of the current high-stakes fiscal fight. There’s no short-term deficit problem, they say, and there isn’t even an urgent debt crisis that requires immediate attention. This group could make it even harder for President Barack Obama to strike a grand bargain because they increasingly see no immediate need for either new spending cuts or significantly more revenue, both of which they say could further slow the economy.

These Democrats and their intellectual allies once occupied the political fringes, pushed aside by more moderate members who supported both immediate spending cuts and long-term entitlement reforms along with higher taxes.

But aided by a pile of recent data suggesting the deficit is already shrinking significantly and current spending cuts are slowing the economy, more Democrats such as Virginia Sen. Tim Kaine and Maryland Rep. Chris Van Hollen are coming around to the point of view that fiscal austerity, in all its forms, is more the problem than the solution.

This group got a huge boost this month with the very public demolition of a sacred text of the austerity movement, the 2010 paper by a pair of Harvard professors arguing that once debt exceeds 90 percent of a country’s gross domestic product, it crushes economic growth.