He says the Black men would become citizens and and have more civil rights.
Here's part of his speech:
"If you desire Negro citizenship, if you desire to allow them to come into the State and settle with the White man, if you desire them to vote on an equality with yourselves, and to make them eligible to office, to serve on juries, and to judge your rights, then support Mr. Lincoln and the Black Republican party, who are in favor of the citizenship of the Negro. For one, I am opposed to Negro citizenship in any and every form. I believe this government was made... by White men, for the benefit of White men and their posterity forever...
Mr. Lincoln believes that the Negro was born his equal and yours, and that he was endowed with equality by the Almighty, and that no human law can deprive him of these rights."