Election season is always filled with political polls trying to decipher which way voters are swaying and how it impacts the campaigns. Get the Facts on the polling process and how to interpret the information.

Pennsylvania is considered crucial to the outcome of the race, as it boasts the most electoral votes (19) of any of the battlegrounds.

Just 93 out of 538 electoral votes are likely to decide the presidential election. The seven swing states have a combined total of 93 Electoral College votes, or 17.3% of the total, with both candidates devoting huge amounts of time and money trying to win them.

The Electoral College is used to choose the winner of the presidential election, but the number of votes in the College that each state receives changes every year. The Electoral College was established as a compromise between electing the president by Congress and a popular vote of citizens.