Here’s Professor Michael Ross of the University of Maryland on Reconstruction up to the 14th Amendment.
The video’s description tells us, “Michael Ross spoke about Reconstruction and the origins of the 14th amendment. His course is titled U.S. Constitutional and Legal History Since 1860. Andrew Johnson was a Tennessee Democrat who remained loyal to the Union during the Civil War. Lincoln added Johnson as vice president on his ticket in 1864 to bolster his re-election chances, and Johnson ascended to the presidency following Lincoln’s assassination in April 1865. Some Republicans in Congress found Johnson’s Reconstruction policies to be too lenient, and as a response they put forth the 14th amendment, which included provisions to ensure citizenship for former slaves, as well as equal protection and due process of law.”
This is a really good lecture.