Washington (CNN) As his Environmental Protection Agency delivers its latest blow to environmental regulations aimed at reducing carbon emissions, President Donald Trump is heading into the heart of coal country to deliver the good news.

Trump will join supporters in Charleston, West Virginia, for a political rally on Tuesday to celebrate his administration's proposal to allow states to set their own emissions standards for coal-fueled power plants.

The move would reverse Obama administration efforts to combat climate change and marks the fulfillment of a campaign promise at the heart of his appeal in coal-producing states like West Virginia -- an appeal embodied by Trump's 2016 campaign stops in the coal country of West Virginia, Kentucky and Pennsylvania, where Trump supporters waved "Trump Digs Coal" signs and where the President-to-be donned a coal-mining helmet.

The EPA Tuesday morning formally unveiled the details of its new plan to devolve regulation of coal-fired power plants back to the states, one that is expected to give a boost to the coal industry and increase carbon emissions nationwide.

The move is expected to spark an intense legal battle, with environmental groups already readying legal challenges to the new regulations.

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