It's looking increasingly likely that Republicans will take control of the Senate after Tuesday's midterm elections in the US. Nate Silver, arguably the king of polling and election data, is showing that currently polling models would have to be significantly skewed for Democrats to maintain even a decent chance of holding their majority. If Republicans gain control of the Senate, they will have majorities in both houses of Congress - which is bad news for President Obama's legislative agenda. Will the next two years bring more deadlock, partisanship, and general inefficiency? Perhaps there will be a tipping point and conservative moderates will emerge as leaders who can negotiate and compromise with democrats in Congress and in the White House. If not, I'm not very optimistic about President Obama's final two years in office ...