21.   Representative Kennedy is now set squarely in opposition to his uncle on this defining issue.

22.   The annual vigil has become a defining issue dividing pro-Beijing parties and the pro-democracy forces.

23.   The budget is a defining issue.

24.   The concern about decommissioning has long been a defining issue in the effort to negotiate a peace in Northern Ireland.

25.   The Ivy-or-bust mentality is evolving as a defining issue from earliest childhood.

26.   There were two defining issues in that campaign.

27.   With the Cold War won and anti-communist dramatics thus moot, the party increasingly has leaned on its animus toward taxation for a defining issue.

28.   Yet while national polls show a majority would favor more gun control, only a handful of pro-control voters consider it a defining issue.

29.   Yesterday, McGovern still seemed to be searching for those defining issues.

30.   But economics never became a defining issue.