If Peter Wallsten, Lori Montgomery, and Scott Wilson of the Washington Post have their story straight, the Gang of Six may have inadvertently derailed a significant bipartisan deal that would have reduced deficit spending over the next decade and committed the president to lower statutory tax rates.

There is one set of issues I’d like to know more about:

But the major elements of a bargain seemed to be falling into place: $1.2 trillion in agency cuts, smaller cost-of-living increases for Social Security recipients, nearly $250 billion in Medicare savings achieved in part by raising the eligibility age. And $800 billion in new taxes.
In Boehner’s offer Friday night, the taxes came with strings attached. The Republicans wanted Obama to give up plans to raise the tax rate paid by the wealthiest Americans, now set at 35 percent. Instead, they wanted that rate to go down. They also wanted to preserve low rates for investment income — one of the biggest perks for the wealthy in the tax code — and establish a blanket exemption from U.S. taxes for corporate profits earned overseas.
Another key caveat: Much of the $800 billion would have to come from overhauling the tax code — not from higher tax rates. The Republicans believed lower rates and a simpler code would generate new revenue by discouraging cheating and spurring economic growth. If the White House would agree to count that money, the Republican leaders said, then they might have a deal.
That last condition was a problem. For years, Democrats have mocked the Republican argument that tax cuts pay for themselves by boosting the economy, an assertion for which evidence is scant. Many independent budget experts say the effect, if it exists, would be almost impossible to measure and useless in crafting a budget. Fiscal “snake oil,” some Democrats say.

One assumes, however, that a “simpler tax code” would also entail curbing various tax expenditures, so I wonder how much of the notional revenue gain would derive from “dynamic effects” under the Republican approach.