The battle no one is discussing

With all of the focus on the Presidential race, the electoral battle that no one is discussing is the one for the control of the Senate: http://online.wsj.com/article/SB121936710710962237.html?mod=djemEditorialPage. I don't think that this receives anywhere near enough attention, because if the Democrats gain a filibuster-proof majority (60 or more Senate seats)--a very real possibility given the general mood of the voters and the simple mathematical fact that the Republicans are defending a lot more vulnerable Senate seats than are the Democrats--we could have a Harry Reid-led majority which could set the agenda for the entire country. As well, if you tacked a President Obama on to that filibuster-proof majority, you could have the most "progressive" (translation: LEFT WING) government this country has ever had, including the New Deal Congress.