Here is an article in ZeroHedge on the overall senate picture from Wall Street's perspective. It comes with a cool chart showing where each race currently stands, all on the same chart.

http://www.zerohedge.com/news/2014-08-2 ... e-majority

For those not familiar with ZeroHedge, it is a web site operated by ex Wall Street guys for the consumption of current Wall Street guys. They collect and comment on articles from around the world. For economic and financial topics, I have yet to find a site or any type of publication that is nearly as good as this one.