In 2016 presidential candidates didn't campaign based on the popular vote winning so you have no idea who would have won the popular vote as many liberals and conservatives in California and Texas for example stayed home because they knew what their state would be before it even started.Check out the Popular Vote Compact. Who decided to give away the votes of 66 million voters to a guy who only got 62 million votes?
The National Popular Vote bill would guarantee the Presidency to the candidate who receives the most popular votes across all 50 states and the District of Columbia. Explanation.www.nationalpopularvote.com
If it was based on the popular vote then voters would have come out in those states and the candidates would have campaigned differently.