Problem: What do survey results illustrate about the reliability of polling data, considering Hillary Clinton won the popular vote but lost the 2016 presidential election? Polling data should be used to sway voters ' allegiance in elections. Polling data in elections is a trustworthy measurement of support from registered voters. Polling data should not be used as a valid source to predict election outcomes due to the Electoral College. Polling data of a candidate's popularity may not accurately predict election outcomes due to the Electoral College.