Ike was wrong about General Lee. Lee was a slaveholder and had no loyalty to these United States. As soon as Virginia seceded from the Union, Lee saw nothing wrong with being the leading general in the war which killed more American soldiers than any other war.
He was a veteran of the Mexian American War, but in my opinion when he decided to lay arms against his country because of his conflict of interest as a slaveholder, he lost all honor.
If I had an array of men responsible for killing more American soldiers than any other, General Lee would have to be on that list.
Ike having a picture of General Lee in the White House is a slap in the face to every family like mine who lost loved ones defending the United States in the Civil War.
Respect the troops.