By Lawrence Hurley and Valerie Volcovici WASHINGTON (Reuters) - The U.S. Supreme Court on Tuesday delivered a major blow to President Barack Obama by putting on hold federal regulations to curb carbon dioxide emissions mainly from coal-fired power plants, the centerpiece of his administration's strategy to combat climate change. The court voted 5-4 along ideological lines to grant a request by 27 states and various companies and business groups to block the administration's Clean Power Plan, which also mandates a shift to renewable energy from coal-fired electricity. The plan was designed to lower carbon emissions from U.S. power plants by 2030 to 32 percent below 2005 levels.
Last-minute voters cast ballots Tuesday in the small US state of New Hampshire in the second key test of the White House race, with Donald Trump chasing victory and Hillary Clinton looking to reel in local hero Bernie Sanders. Once every four years, the nation's eyes focus like laser beams on New Hampshire, which holds the first state primaries after the Iowa caucuses kick off the US presidential nomination process.
The US Supreme Court on Tuesday put on hold President Barack Obama's sweeping plan to reduce greenhouse gas emissions from coal-fueled power plants pending a legal challenge. A coalition of 27 US states is suing in a lower court to halt Obama's Clean Power Plan, and petitioned the Supreme Court to suspend its implementation until the case is resolved. Most of the states involved are run by Obama's Republican adversaries.