Democrats, including presidential candidate Joe Biden, stand strong in the polls -- but unpredictability reigns in 2020. "We're in such a unique time that you don't know what the next week is going to bring," says Harry Enten, senior writer and analyst for CNN Politics, in this week's episode. Assessing the latest polls as well as elections past, Enten offers his take on Biden's and President Donald Trump's respective paths to 270 electoral votes. What impact will the proliferation of mail-in ballots have on the election? And do the candidates' favorability ratings matter?