11.   Congressional Republicans and President Clinton declared an impasse in negotiations yesterday and said no further talks would be held until next week.

12.   Federal mediators have declared an impasse in contract negotiations between Northwest Airlines and its pilots, setting the stage for a possible strike as early as next month.

13.   Federal mediators involved in the talks have not declared an impasse, however.

14.   If the owners declare an impasse and implement the cap, the union will challenge their action before the board, triggering months of legal hassles.

15.   If the owners were to declare an impasse and implement the salary cap, for example, the players would charge them with bad-faith bargaining.

16.   If the Board of Education at a meeting today does not change its offer, the issue will go to a state mediator who could declare an impasse.

17.   In this case, after the owners declare impasse, implement and impose, they may implode.

18.   --Is the NBA intent on declaring an impasse in bargaining and imposing its new, owner-friendly system, thereby daring the players to report or strike?

19.   It recently asked the mediation board to declare an impasse, which would start the countdown to another potential strike.

20.   Last month the National Mediation Board declared an impasse, triggering a strike countdown.