 Silver examined the pitfalls of the forecasting process, while Sexton discussed the final government agreement between the Conservatives and the Liberal Democrats.On June 6, 2010, "FiveThirtyEight" posted pollster rankings that updated and elaborated Silver's efforts from the 2008 election.Silver expanded the database to more than 4,700 election polls and developed a model for rating the polls that was more sophisticated than his original rankings.