The credit union industry has never lacked for political muscle.  Nonprofit institutions that serve people rather than investors, they are so   beloved on Capitol Hill that they win most legislative battles without   breaking a sweat, especially when they are pitted against banks.     
But with the Credit Union National Association beginning its annual  convention Monday in Dallas, there is some reason to believe that banks are   at last positioned to make some headway, particularly on the issue of   revoking credit unions' tax exempt status.     
  
First, even the credit unions acknowledge they have stumbled this year.  Their biggest mistake may have been reneging on a commitment to Senate   Banking Committee Chairman Alfonse M. D'Amato.   
Reacting to the failure of Capitol Corporate Credit Union, Sen. D'Amato  introduced reform legislation this year. The CUNA concluded that the bill   was about as moderate a piece of legislation as it could have hoped for and   endorsed it.     
  
The CUNA's members saw things differently and forced the trade group to  reverse its position. That's not the way to treat a powerful senator,   particularly one who has always been an ally.   
"It really didn't help us," said Charles O. Zuver, the CUNA's top  lobbyist, in what is surely one of the year's grand understatements. 
Sen. D'Amato "has always been a friend of the industry," Mr. Zuver  added. But he may "have second thoughts about running out to help us now." 
  
As it happens, Sen. D'Amato also sits on the Senate Finance Committee,  which has jurisdiction over tax legislation. That means the New York   Republican influences every major legislative issue affecting credit   unions, from their tax exemption to laws affecting fields of membership.     
Off Capitol Hill, the credit unions' problems run deeper. Bankers are  confident that an appeals court is ready to side with them on a case that   raises questions about how far a credit union can go in expanding its field   of membership.     
In recent years, bankers have complained that the National Credit Union  Administration has stretched the common-bond doctrine to allow individual   institutions to recruit virtually anyone this side of heaven. An adverse   decision could slow the industry's growth.     
What could finally turn the tide, however, is the likelihood that the  banking industry will finally settle the big issues that dominate its   agenda now - Glass-Steagall, regulatory relief, and funding for the thrift   bailout - and turn its full attention to the credit unions.     
  
"Soon, the credit union issue will become a top priority for us," vowed  Edward L. Yingling, chief lobbyist for the American Bankers Association. 
When it does, Mr. Yingling plans to pick his fights carefully. He notes  there is a split in the credit union industry, between large institutions   and small ones, and adds that the ABA has no beef with the so-called mom   and pop shops.     
Instead, Mr. Yingling has his sights trained on the large, multi-billion  institutions that he says are indistinguishable from commercial banks and   which do not now pay taxes.   
The ABA has shown itself to be effective in the past on issues that once  seemed hopeless, including regulatory relief. Challenging the credit unions   is even more of a long shot. But at least it's no longer hopeless.