You do know O'Riley had Lincoln in the Oval Office...about 40 years before there was an Oval Office...he is not really a credible historian....he writes puff history....and was Trump  tryimng...in his inarticulate blubbering trying to parrot  O'Riley?....

There's a difference between what O'Riley  purportedly said of the Truman quote...and the nonsense that came out of Trump....and its odd that when you google the Truman on Jackson and the civil war quote...the only place it shows up is O'Rileys page and a RWNJ propaganda site....Id be skeptical.....