<human>:  How did the polls get it so wrong in the 2016 US Presidential Election?
<bot>: The polls got it wrong because they didn’t account for the possibility of a Trump victory. The polls were based on polling data from the 2012 election, and the 2012 election was a close race. In the 2016 election, Trump had a large lead over Clinton, and the polls didn’t account for the possibility of a Trump victory.