1.   It costs many hundreds of thousands to mount a challenge like this.

2.   They are ready to mount a challenge for the championship.

3.   No serious challenge has been mounted to Arenson.

4.   Although the lawsuit is the first challenge in New York, several successful challenges have been mounted in other states.

5.   America is mounting another challenge, this time declaring war against terrorism, and hastily resurrecting federal spending, which had fallen into disrepute.

6.   And several Likud Party lawmakers are contemplating mounting a challenge to Sharon if Netanyahu is not allowed to run.

7.   Both Taylor and Armour can expect some of those younger men to mount a challenge in the coming days.

8.   But furious rank and file Republicans burned up the phone lines to each other, discussing whether to mount leadership challenges in both chambers in the next few weeks.

9.   But soon after, the Taliban mounted a challenge to the city.

10.   But then hawkish members of the Senate Armed Services Committee from both parties decided to mount a challenge.