Use information obtained during previewing to and
a. make strong inferences . . predict
b. skim . . scan
c. monitor . . adjust
d. read . . write

from the political point of view it could be said that the candidate   is an effective speaker because she takes a strong position on the issue. it is an open discussion but probably she is making a presentation and can choose which subjects she wants to address. she is very likely to attain her aim which is to convince voters to accept her proposal.