Public Citizen, Voter Action, the Center for Corporate Policy, and the American Independent Business Alliance called for a constitutional amendment to mitigate fallout from the Supreme Court's Citizens United decision, the groups announced today.

The coalition also called for Congress to find a mechanism to reinstate the corporate ban (for instance, through new pay-to-play legislation), to pass legislation to empower shareholders to have a greater say in corporate spending (no such legislation has been introduced) and to pass public finance legislation (currently in both chambers). Read analyses of the two latter strategies in National Journal here. (subscription required)

"By themselves, [these measure] will not be enough to undo what the court has done today," Public Citizen president Robert Weissman said today, explaining the call to alter the Constitution.

One member, Rep. Donna Edwards, D-Md. , is on board with this decision, according to the coalition. The group said a petition strategy that will abet its campaign.

"This is going to be a very broad, a long-term effort. We do not take lightly the idea of calling for a Constitutional amendment," Weissman said.