Harris may want to dig into his misrepresentation of Lincoln some more.  The worst kind of history is the history you think you know, but don't.

" ... Lincoln had long favored the "colonization" option, though as a voluntary option rather than a mandated removal. Moreover, his issuance of the Emancipation Proclamation on Jan. 1, 1863, rendered even that voluntary option effectively dead -- and since that was more than two years before the end of the war on April 9, 1865, his assassination didn’t stop it from happening. Lincoln never spoke publicly of colonization after issuing the proclamation, and apparently did little behind the scenes to advance the idea after that date, focusing instead on creating a post-war society that included both blacks and whites."

http://www.politifact.com/truth-o-meter/statements/2015/jun/26/blog-posting/did-abraham-lincoln-plan-send-ex-slaves-central-am/