President Donald Trump on Monday publicly pushed the Tennessee Valley Authority to save an aging coal plant in Kentucky that buys its fuel from one of the president’s top supporters.

“Coal is an important part of our electricity generation mix and @TVAnews should give serious consideration to all factors before voting to close viable power plants, like Paradise #3 in Kentucky!” Trump tweeted.

His missive came just days before the TVA board is slated to vote on the future of Paradise Unit 3, a 49-year-old coal plant that the federally owned utility has said would be too expensive to keep operating.

The 1,150-megawatt plant gets the bulk of its coal from a subsidiary of Murray Energy, according to data from the Energy Information Administration. Robert Murray, the CEO of the mining company, is a major Trump supporter who has personally lobbied the president to take other actions to help the ailing coal industry, particularly in regions where he sells coal. The White House has shelved a proposed coal bailout plan that has been among Murray's top priorities, although the Trump administration has rolled back numerous other environmental rules the magnate has criticized.

Murray is a prolific GOP donor, and his company gave $1 million from his company to the Trump-supporting super PAC America First Action in the last election cycle, among other big contributions. Acting EPA Administrator Andrew Wheeler, who is awaiting Senate confirmation, lobbied for Murray Energy among other clients before joining the Trump administration, including joining the CEO and other company officials in a 2017 meeting with Energy Secretary Rick Perry to discuss Murray's policy proposals. Wheeler has said he did not write the action plan Murray presented to the Trump administration.

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