. >> in the domic race, 2015 was supposed to be a cake walk for former secretary of state but in the spring, clinton acknowledged using a private email for government business did you wipe the server. >> with a cloth or something? >> i don't know. >> stories also emerged with bill clinton receiving speaking fees. and they women captivated by bernie sanders. >> let's have the courage not to beat up on mexicans or muslims but to take on the billionaire class. sanders drew tens of thousands of people to rally after rally. and his speeches and late night clips went viral. feel the burn. polls suggest sanders is nearly even with clinton in iowa, but far behind nationally. however, some say if sanders wins the first two contests will it be 2008 all over again, when barack obama defied expectations beat hillary clinton, and captured the nomination. >> whoa. >> the big question in both the democratic and republican race is whether the passion for outsiders will actually translate into votes. in 2015, the political world was put on notice, 2016, will determine whether the revolution is real.