Journalist Walter Lippmann suggested that
A. Polling, even when done scientifically, cannot be trusted because it is in the peoples nature to be honest in response to political questions
B. The dominance of polling has brought about an ideological shift toward the more radical ends of the political spectrum among elected representatives
C. Polling had provided political parties with even more entrenched power, reducing the influence of third party candidates
D. Effective government cannot be run by politicians that base their public opinions on poll results
E. Pollsters have had more effect on the outcome of presidential elections in recent decades than have the people who do the voting

D. Effective government cannot be run by politicians that base their public opinions on poll results

Explanation:

In his book titled Public Opinion, Walter Lippmann suggested that, effective government cannot be run by politicians that based their public opinions on poll results.

This implies that, even though, politicians seek to govern the state based on the public opinion or what the public want, however, the governance will not be effective if the politicians are using the poll results to measure public opinions, as poll results may not necessarily reflects or represent the public opinions, because often times, what polling does is to ACCEPT or OPPOSE a position already made by government, and not that it pushes the real opinions of the people.