"Different businesses will face different public relations problems with their political contributions," said Schier. "Going forward after the Target flap, I think you can expect fewer conspicuous corporate donations from high-profile businesses."
Still, corporate, union and interest group campaign spending in Minnesota is not likely to abate, Schier and Schultz said. Voters can expect a "deluge" of TV ads and "carpet bombing of political messages" from now through November.
Congressional Democrats have attempted to impose new disclosure requirements on corporate and interest group spending in the wake of Citizens United, but so far those efforts have faced stiff Republican opposition.
The most recent ABC News/Washington Post poll finds that 80 percent of Americans opposed the Supreme Court's decision lifting the campaign spending restrictions. Seventy-two percent have favored a legislative attempt to reinstate some limits the court lifted.