Answer: mcclellan

AnswerCrossword Clue
MCCLELLANAntietam campaign general George
MCCLELLANHe ran against Lincoln in 1864.
MCCLELLANSenatorial prober.
MCCLELLANLoser to A.L. in 1864
MCCLELLANHe fought Lee at Antietam