Ten Senate races go down to the wire

Ten Senate races go down to the wire-politico: It’s the largest and most wide-open Senate battlefield in more than a decade: 10 races, all neck-and-neck affairs headed into the final days of the campaign. And it’s not only that there are more competitive races this time around; it’s how close they are that has made the 2014 midterms different from previous cycles. The 10 close contests this year are all separated by 5 percentage points or less, according to RealClearPolitics polling averages as of Tuesday. Fewer races were that close right before recent midterms: eight in 2010 and five in 2006.