The attorneys general of at least four states are preparing to sue California if the state’s landmark law limiting greenhouse gas emissions survives a challenge at the ballot box this November.

The attorneys general of Alabama, Nebraska, Texas and North Dakota have been devising a legal strategy to challenge the California act, signed by Gov. Arnold Schwarzenegger in 2006, on the grounds that it interferes with the right to freely conduct interstate commerce, according to Wayne Stenehjem, the attorney general of North Dakota.

The attorneys general of at least four states are preparing to sue California if the state’s landmark law limiting greenhouse gas emissions survives a challenge at the ballot box this November.

The attorneys general of Alabama, Nebraska, Texas and North Dakota have been devising a legal strategy to challenge the California act, signed by Gov. Arnold Schwarzenegger in 2006, on the grounds that it interferes with the right to freely conduct interstate commerce, according to Wayne Stenehjem, the attorney general of North Dakota.

Health insurers say they plan to raise premiums for some Americans as a direct result of the health overhaul in coming weeks, complicating Democrats' efforts to trumpet their signature achievement before the midterm elections.

Aetna Inc., some BlueCross BlueShield plans and other smaller carriers have asked for premium increases of between 1% and 9% to pay for extra benefits required under the law, according to filings with state regulators.

Health insurers say they plan to raise premiums for some Americans as a direct result of the health overhaul in coming weeks, complicating Democrats' efforts to trumpet their signature achievement before the midterm elections.

Aetna Inc., some BlueCross BlueShield plans and other smaller carriers have asked for premium increases of between 1% and 9% to pay for extra benefits required under the law, according to filings with state regulators.