At least 5 million voters, predominantly young and from minority groups sympathetic to President Barack Obama, could be affected by an unprecedented flurry of new legislation by Republican governors and GOP-led legislatures to change or restrict voting rights by Election Day 2012.

Supporters of these new laws — spearheaded in six swing states, as well as other less competitive ones — argue they are just trying to stop voter fraud and protect the integrity of the vote. But opponents, mainly Democrats and Obama’s campaign, which is closely monitoring the daily warfare over the new laws, believe they are trying to change the face of the electorate in a way that benefits the Republican candidate for president.