Cheap shot in union ad

I don’t know about the specifics of this debate, but I think the line about Lincoln is uncalled for. Lincoln saved the Union and ended slavery, but he also signed off on the largest execution of Native Americans in U.S. history. Right or wrong, this is a sore spot with some American Indians, and to bring it up just strikes me as a cheap shot.

http://blogs.twincities.com/politics/2015/09/04/union-attacks-mccollum-over-tribal-labor-bill/