If you want another source besides Nate Silver’s site at FiveThirtyEight for information to make an educated guess about control of the Senate, check out Electoral-vote.com. The page has a map of all the states which links to the latest polls from each state. As an example of how close things are, today’s projection shows the Democrats with 49 seats, the Republicans with 50, and one tied. The Democrats retain control if they can maintain fifty seats due to Vice President Biden casting the deciding vote in a tie.
The tie is in Iowa, which does seem to give the Democrats a fighting chance of winning the 50th seat based upon this projection. FiveThirtyEight gives Democratic candidate Bruce Braley a 55 percent chance of winning that race.
Some of the states are classified as barely leaning towards one party and there is no doubt that some of these (and perhaps other) states will change. For example, Electoral-vote.com has Mary Landrieu barely leading in Louisiana. FiveThirtyEight gives her a 45 percent chance of winning, and predicts that this race will come down to a run-off in December. With control of the Senate very possibly coming down to a single seat, we can easily have a situation where we are waiting until the December run-off, which would then turn into an extremely high profile race.
The Democrats also face a tough challenge in North Carolina despite this state being listed as barely Democratic. FiveThirtyEight sees it as even tighter, giving Kay Hagan a 50 percent chance of winning.
Other races could also provide the Democrats with the 50th seat should the other races go as Electoral-vote.com predicts. They currently have Colorado listed as barely Republican, while FiveThirtyEight gives Mark Udall a 60 percent chance of winning. At this point I would place more credence in a human projection than in Electoral-vote.com’s projections based purely on the polls.
These sites certainly do not provide an answer as to who will win. The next question would be the impact of winning with Ezra Klein joining many other political writers in seeing a Republican controlled Senate as further increasing the chances that the Democratic presidential candidate will win in 2016. Will this keep Hillary Clinton from campaigning for Democrats this fall despite the risk of ill will from some Democrats?