I understand Gen. Halleck has sent you a letter of which this is a copy. I approve the letter. I deplore the want of concurrence with you, in opinion by your general officers, but I do not see the remedy. Be cautious, and do not understand that the government, or country, is driving you. I do not yet see how I could profit by changing the command of the A.P. & if I did, I should not wish to do it by accepting the resignation of your commission.
Gen. Burnside. A. LINCOLN