For the last month, we’ve been adding one or two polls a day to The Upshot’s Senate forecasting model. Today, we update all 36 races, based on estimates from a YouGov online panel that covers every congressional and gubernatorial race across the country. …
With the addition of the YouGov estimates to our model, the overall outlook for the Senate remains roughly the same. The Republicans appear to have a slight advantage, with the most likely outcome being a Republican gain of six seats, the minimum they need to finish with a 51-49 seat majority. CONT.
Amanda Cox & Josh Katz, New York Times