Americans aren't in love with super PACs, the new independent groups transforming the 2012 presidential election.

Nearly seven in 10 Americans say super PACs should be illegal, according to a new ABC News/Washington Post poll.

The strong feelings toward these groups are bipartisan, the poll shows. Seventy percent of Democrats and 55% of Republicans want to outlaw super PACs, as do nearly eight in 10 independents.

Mississippi and Alabama voters, who go to the polls today, have been watching ads defining the GOP presidential candidates that have been financed almost totally by super PACs.

Bloomberg News reports 91% of the 5,592 campaign ads that aired on TV in these two Southern states in the past month have been paid for by super PACs, according to data from Kantar Media's Campaign Media Analysis Group.

The CMAG data show the big advertiser in the two states is Restore Our Future, the super PAC behind Mitt Romney.

Overall, the group has spent $37.8 million in the GOP race, followed by $16.3 million by Winning Our Future, the super PAC backing Newt Gingrich.