Question

why would someone seek to manipulate a poll? to influence politicians or voters to accurately represent the truth to prove polling doesnt work

Explanation:

Poll manipulation involves altering poll results to serve a specific agenda. Accurately representing truth is the goal of legitimate polling, not manipulation. Proving polling doesn't work is not a common or primary motive for most poll manipulators. The typical motive is to sway the opinions or actions of politicians or voters to benefit a group, candidate, or cause.

Answer:

to influence politicians or voters