the data of a divided nation

Nate Silver's FiveThirtyEight blog burst onto the political scene in 2008, when he forecasted the popular vote for president within one percentage point. Becoming a key point of reference during elections, he started a podcast in 2016, and says his methods continue to be more reliable than popular narratives. So what do they say for the 2018 midterms? NewsHour Weekend’s Christopher Booker reports.