As President Obama knows well there is no way that he can force Congress to put in place rules for “global warming” on America. Many Democrats don’t even support these types of rules as they represent states that heavily rely on coal production. Most Republicans believe that global warming is fictional and based on hysteria and poor science.

This is why Obama has recently talked about an unconstitutional executive order that places a limit on carbon emissions. As soon as he made this announcement, five Republican Governors said that they will oppose this. The Governors in question are Greg Abbott of Texas, Bobby Jindal of Louisiana, Scott Walker of Wisconsin, Mike Pence of Indiana and Mary Fallin of Oklahoma.

This was welcomed news by Walker and Jindal in particular as they had been running for president at the time.

As President Obama prepares to complete sweeping regulations aimed at tackling climate change, at least five Republican governors, including two presidential hopefuls, say they may refuse to carry out the rules in their states.

The resistance threatens to ignite a fierce clash between federal and state authorities, miring the climate rules in red tape for years. The fight could also undermine Mr. Obama’s efforts to urge other nations to enact similar plans this year as part of a major United Nations climate change accord.

Republican strategists say that rejection of Mr. Obama’s climate policy at the state level could emerge as a conservative litmus test in the 2016 election. Two of the governors who have said that they might defy the regulations — Scott Walker of Wisconsin and Bobby Jindal of Louisiana — are among at least four Republican governors who are expected to vie for the presidential nomination.

Other governors who have issued threats over the rules include Greg Abbott of Texas, Mike Pence of Indiana and Mary Fallin of Oklahoma.

The governors’ actions have come after the Senate majority leader, Mitch McConnell, Republican of Kentucky, opened a campaign earlier this year urging all governors to refuse to carry out the climate change rules.