In the weeks leading up to the 2016 presidential election, news outlets and polling organizations were nearly unanimous in their prediction that Democratic candidate Hillary Clinton would win. This is possibly an example of .

Groupthink

Explanation: Groupthink can be regarded a unique belief or thought among individuals in a particular group or society. Such belief or thought is reached without critical or empirical evaluation usually in a bid to maintain conformity, avoid division or argument within the group. Groupthink could be seen as psychological phenomenon which is aimed at avoiding conflict by reaching a consensus or making a unanimous decision which is devoid of critical evaluating or examination.

to plan an idea out before