“Mary is history ................under the bus.”
From reading Daily Kos, the logic seems to be that the blacks are angry now over Ferguson, and the Obama endorsement means they will turn out to vote in the run-off.
A large black turnout would offset any R momentum, in an expected low-turnout run-off election, they say.
A Hail Mary with a black voter surge ain’t going to happen without walking around money, and she’s tapped.