But members of the gay community around the country say that Target in particular is "trying to have it both ways" by supporting a candidate like Emmer and still publicizing their efforts to help the gay rights movement.
"Target has always been a really supportive workplace for GLTB people," said Monica Meyer, the interim head of the gay rights group OutFront Minnesota. "I think people are feeling a little bit betrayed by the company. [The contribution] seems really contradictory to how they've acted in the past."
"I do think that people are rethinking their shopping, particularly during election season," said Meyer. "And I have heard some people saying it's a good thing Costco exists."
Ron Malott, a designer in Austin, Texas, who shops regularly with his partner at Target for supplies for his two young children, says that he will find somewhere else to spend his money.
"I won't shop there," said Malott. "There are two in about a five-mile radius from me but I'll find somewhere else to go, I won't spend my money at Target."
On Facebook, a group supporting a boycott of Target named "Boycott Target Until They Cease Funding Anti-Gay Politics" and one with a similar title dedicated to Best Buy, is already attracting membership. Target's group alone already has more than 5,000 members.
The group's message board has been flooded with Target shoppers vowing to never step foot inside the store again, with one member writing that she feels "more than a little sick and pretty angry when I think of all the [money] I've spent at Target over the years."
Phone numbers for Steinhafel as well as his assistant are also posted on the group's site.
The Associated Press contributed to this report.