With just days until the 2014 midterm election, 10 Senate races are still considered tossups by prominent analysts–and all but one seat have ties to the defense spending and policy committees. Six Democrats and one Republican on the Senate Armed Services Committee or Senate Appropriations Committee–as well as the seats left vacant by one retiring senator from each party–are tangled up in close races that not only will affect the control of the Senate next year but will also affect…