Often, we think that our decisions in life may mean very little, or even nothing at all. We think that what we do impacts no one, changes nothing.

But these choices can have effects that are far from visible at first glance. Small decisions can cause substantial changes and add up over time in ways that seem impossible at first glance.

Today, we look at the American swing states and examine how they serve as predictors of national trends and how their back-and-forth can affect the outcome of elections in significant ways.