confidence and margin of error

im not sure if im reading this question correctly?

A political action committee is interested in finding out what kind of popular support they might expect on an environmental initiative. similar issues have gotten 91% support. The committee will set up a polling program to assure 95% confidence that the margin of error is less than 0.07.

here is what i have


64.20% is the support they might expect to recieve.


TS Contributor
64.2 or 65 (rounded up) is the minimum sample size required to estimate the % of voters who will support the initiative within +/- 7%.