CNN Politics: Voting Challenges Head Toward the Supreme Court: 4 Cases to Watch

Besides a challenge to Voter ID, Democratic voters in Wisconsin, represented by the Campaign Legal Center, are challenging the state Assembly redistricting map arguing that it constitutes an unconstitutional partisan gerrymander.
"As a result of the lines drawn, even when more Democrats cast votes in Wisconsin, a large majority of Republican legislators are elected," said Ruth Greenwood senior redistricting counsel with the Campaign Legal Center. "We think this is undemocratic and unconstitutional."