When Target gave money in July to a pro-business group in Minnesota, the company thought it was helping its bottom line by backing candidates in its home state who support lower taxes. Instead, the retailer has found itself in a fight with liberal and gay rights groups that has escalated into calls for a nationwide boycott and protests at the company's headquarters and stores.

The problem: Target's $100,000 helped pay for TV ads supporting the gubernatorial campaign of Republican state Rep. Tom Emmer, who thinks Minnesota's corporate taxes should be lower. As it turns out, he also wants to ban same-sex marriage.

Read the entire Washington Post article here.