1.   But the reason the issue sparked a recall effort in Tempe, Giuliano and some elected city officials maintain, is that the mayor is gay.

2.   Contentious issues have sparked philosophical battles between the parties and regional interests since the Senate began its energy policy debate over a month ago.

3.   He said the teacher pay issue could spark other demands.

4.   Meanwhile, the issue has sparked debate over the right to work in peace and the right to public expression.

5.   Social issues often spark unfounded claims cloaked in the reason of science.

6.   That rather routine issue sparked a case that comes to the high court brimming with controversies about some of the most contentious constitutional issues of the day.

7.   The issue may spark a lawsuit by those who contend at least some of the money should be returned to taxpayers.

8.   The issue has sparked a major dispute among officials and within the African-American community, which strongly backed Hahn for mayor.

9.   The Internet gambling issue has sparked an intensifying debate.

10.   The issue could spark a renewed trade war with the U.S. over intellectual property rights.