If you've always wanted to know how Putin could get away with highjacking our democracy in 2016, the book Rigged: America, Russia, and One Hundred Years of Electoral Interference will provide much-needed answers and insights. Historian David Shimer spoke to dozens of officials, from the intelligence community to the Obama administration, who share what happened in 2016, what they wish they would have done differently, and the vulnerabilities that plague our elections to this day.