A big coalition of business groups says there must be give-and-take in the negotiations to avoid the “fiscal cliff” of massive tax increases and spending cuts. But raising tax rates — a White House priority — is out of the question, the group adds.

The homebuilding industry says it won’t tolerate even a nick in the mortgage interest deduction. It doesn’t matter, industry leaders say, if it’s part of a broad, spread-the-pain package designed to tame the soaring debt.

And there’s no ambiguity in the views of the top lobbying arm for retirees.

“AARP to Washington: No cuts to Medicare and Social Security in last-minute budget deal” the group’s Web site declares. AARP nixes the notion of slowing the cost-of-living formula for Social Security recipients, even if it’s part of a big, bipartisan compromise package. And President Barack Obama should drop his idea of raising Medicare’s eligibility age, AARP adds.