This map looks about right to me.
Steele has former Missouri Senator James Talent as his running mate.
No sitting Senator wanted to put his reputation on the line by signing on to a ticket that was going to go down to a crushing defeat.
Even under unfavorable circumstances for Obama in 2012, the voters would side with him overwhelmingly if he was running against such an obviously unqualified candidate for President.
Don't get me wrong, I like Steele and believe he is a fine person, and a very capable man, however, far out of his depth as a Presidential candidate, let alone President.