Here is more
See if you can make a clip of it here. The Fiorina-Lucent part starts at 31 minutes and 06 seconds. There is a way to make a clip but my internet connection is really slow now.
http://www.c-span.org/video/?328138-1/donald-trump-town-hall-meeting-rochester-new-hampshire&live
That is very risky as it could fracture the party irreversably. But that's another story.