text: The president can't win the election by just winning one region of states. The Electoral College has made it that the candidate would have to have a trans-regional appeal. This is desirable for most people because a president that is only popular in one region, and not everywhere will not be a good prsident. This is why candidates don't campaign in places that they know they will win, and branch out to the swing states. These swing states basically decide the election. They are the states that do not favor either the democratic or republican candidate, so they have important votes. If swing states go one way, so will the election. This is why many candidates campaign in these Swing States.