Will the Mississippi Primary Change the Senate Map?

First Read notes that “if Democrats get any kind of opening in Mississippi, here’s why that would be very important in November: A Democratic win there — as remote as it may seem — would raise the GOP’s magic number (from six to seven) in the seats it must net in order to win back the Senate. Given the stakes, you are going to see a lot of pressure on the Lotts and Barbours to get on board if McDaniel wins. Then again, it’s very possible Cochran holds on. This is a 50%-50% race, folks.”