In partnership with Dartmouth Rootstrikers we've been keeping track of monthly polling averages for all of the races we've been watching, including the 34 Class 2 Senate elections plus the two special Senate elections, as well as all 36 gubernatorial elections this year. Rootstrikers, if you didn't know, is a group (largely students) devoted to reducing the influence of money in politics. In part this is an extension of our study over the winter, in which we found a negative correlation between the amount of money spent in a Senate race and the margin of victory in that race: the more money was spent, the more competitive the race was.