For decades, Americans have relied on exit polls to illuminate the story of what happened on election night. By gathering opinions from voters largely after they’ve cast their ballots, exit polls fill in the details that our secret-ballot elections otherwise leave impossible to know.

CNN election analyst David Chalian was astonished by the latest exit polls in the Virginia governor's race on Tuesday after they showed former Democrat Rep. Abigail Spanberger "walloping" her opponent,

President Donald Trump’s lackluster approval ratings may have cost Republicans’ chances on Election Day, according to CNN’s data analyst Harry Enten.

CNN’s David Chalian breaks down voter behavior in Virginia, New Jersey, New York City and California and explains what’s on voter’s mind going into election night.