With Grant at Fort Donelson we know Halleck wrote McClellan a bad (false) letter about Grant & McClellan wrote back and said don't be afraid to arrest him if need be. Of course Lincoln ended it all by saying put up or shut up. While this was going on Grant wrote his wife saying something like there are not 2 people he would rather serve under than Halleck & McClellan. My question is, did Grant ever learn of their backstabbing? I know it would sure hurt my feelings finding out that after praising them!