The phrase "whole electorate" refers to all the people who are eligible to vote in an election. It includes everyone in a particular area or country who can participate in choosing their leaders through the democratic process. Full definition
We also plan to reanalyse public opinion surveys (with a temporal component) to see how affective rhetoric influences individual voters» actual political choices (rather than the whole electorate). (blog.politics.ox.ac.uk)
The two things you lose with simple PR is the link between a district and specific representatives (all MP represent the whole electorate) and the ability to choose exactly who gets elected (you vote for a party, not a person). (politics.stackexchange.com)
Do you believe it is more important to reach out to the whole electorate or to consolidate the core vote? (nextleft.org)