The added burden has some members of Congress concerned that the group is now expected to be not just super but downright magical.

“It’s like they’re becoming the Twelve Apostles. They’re going to dictate the law,” said Rep. Raúl M. Grijalva of Arizona, a liberal Democrat who fears that the committee will recommend cuts he opposes. “It really worries many of us.”…

Finding the savings to pay for Obama’s package of tax cuts and infrastructure spending would mean broadening the committee’s deficit-reduction target by nearly a third…

The panel’s Republican chairman, Rep. Jeb Hensarling (Tex.), said the proposal made the “already arduous challenge of finding bipartisan agreement on deficit reduction nearly impossible.”