1.   And Gordon might learn if he finally has a challenger.

2.   But now, at least, the protesters have worthy challengers in the battle for public opinion.

3.   By having a challenger up front, the defender maintains control over the competition by avoiding a renegade team that could dictate terms of the racing conditions.

4.   England was the world leader in large part because it had no challenger as a maritime power.

5.   Johnson tired of having no challenger at flyweight so he vacated the IBF title and moved up to junior bantamweight.

6.   Much of that money and energy is going toward making sure that every Republican officeholder in Palm Beach County has Democratic challenger.

7.   Now they, too, have a challenger.

8.   Promises of money from the committee have Democratic challengers optimistic that they can reclaim a purely Democratic delegation.

9.   Promises of money from the committee has Democratic challengers optimistic that they can reclaim the Massachusetts delegation as solely Democratic.

10.   That interest is a sharp contrast from recent years, when only two or three incumbents had challengers.