Romney’s Impossible Math, Ctd

An exchange from Romney's interview with Stephanopoulos:

GEORGE STEPHANOPOULOS: You cite your own studies. But one of the studies you cite by Martin Feldstein at Harvard shows that to make your math work, it could work, if you eliminate the home mortgage, charity, and state and local tax deductions for everyone earning over $100,000. Is that what you propose?

MITT ROMNEY: No, that’s not what I propose. And, of course, part of my plan is to stimulate economic growth. The biggest source of getting the country to a balanced budget is not by raising taxes or by cutting spending. It’s by encouraging the growth of the economy. So my tax plan is to encourage investment in growth in America, more jobs, that means more people paying taxes. So that’s a big component of what allows us to get to a balanced budget.

GEORGE STEPHANOPOULOS: But his study, which you’ve cited, says it can only work if you take away those deductions for everyone earning more than $100,000.

MITT ROMNEY: Well, it doesn’t necessarily show the same growth that we’re anticipating. And I haven’t seen his precise study. But I can tell you that we can lower our rates —

GEORGE STEPHANOPOULOS: Well, you cited the study, though.

Jonathan Bernstein pounces:

Mitt Romney’s not going to balance the budget by raising taxes or by cutting spending; we’re going to have presto-chango-magico growth. Exactly the way that Ronald Reagan and George W. Bush “balanced” the budget by projecting magical growth rates.

Chait piles on.