If the Electronic Markets are correct and the election were held today:
(Last trade of Contracts, 100= expire at maximum, 0= expire at minimum)
OH
Brown (D) 96
De Wine (R) 5
RI
Whitehouse (D) 73
Chafee (R) 28.4
CT
Lamont (D) 6
Schlessinger (R) 1
Lieberman (I) 92
MD
Cardin (D) 75
Steele (R) 32
MO
McCaskill (D) 58
Talent (R) 47
VA
Webb (D) 52
Allen (R) 45
TN
Ford (D) 16
Corker (R) 85
MT
Tester (D) 75
Burns (R) 31
NJ
Menendez (D) 87
Kean (R) 20
And so, on a state-by-state basis, Democrats would take control of the Senate: 51-49.
However, when you look at just the overall, generic Senate Control contract:
Democrats Take Control 31
Republicans Hold Senate 69
Someone is wrong. I see an arbitrage opportunity!!
source: www.intrade.com