What is Lincoln's view of the fugitive slave law?

Abraham Lincoln consistently pledged to enforce the Fugitive Slave Law, i.e., to make northern states complicit in the perpetuation of the peculiar institution. He moreover opposed efforts in the Republican Party to repeal the Fugitive Slave Law. (See his letters to Salmon P. Chase and Samuel Galloway on June 20, 1859 and July 28, 1859, respectively.)

Quoted from LewRockwell.com