While that is the popular thought in GOP circles, there is no guaranteed win against McCasket and never was. She has the uncanny ability to survive sure defeats, to lie with believability, and to rise from the dead at election time to deceive the multitudes. This was always going to be a tough race.
I still think he pulls it out because of the turnout to make sure OBozo is beaten. And those voters will vote for Akins over McCaskill because they’re not going to pass on a vote which would gaurantee McCaskill as a Senator.