President Donald Trump was in Charleston Tuesday night, at a rally in support of Republican U.S. Senate candidate Patrick Morrisey.

That rally is also attracting demonstrators, including a group from Wood County, who held a protest outside the Charleston Civic Center focusing as much on Morrisey as on Trump.

Those participating have concerns about Morrisey's support of changes in the Affordable Care Act.

"We are very concerned that he is trying to dismantle health care for the people of our state, that he is suing the federal government to deny coverage for people with pre-existing conditions," said Jeanne Peters of Wood County Indivisible. "In a state where half of us have pre-existing conditions, that seems not only heartless, but contrary to West Virginia values."

The rally comes as the Trump Administration has just proposed a major rollback in Obama-era restrictions on emissions from coal-fired power plants.

That plan gives states more control over how to regulate pollution from the plants.

Opponents of the Obama plan, including Morrisey and his opponent, Democratic U.S. Senator Joe Manchin, are praising Trump's announcement.

Sen. Shelley Moore Capito said it's a sign the "War on Coal" is over.

But a West Virginia University professor says the change is unlikely to affect long-term coal production.

"We have coal and natural gas as well as renewables," Professor Brian Lego said Tuesday. "From that front, I don't see that significant of a change happening as a result of this changeover in policy."

A WVU study released last week said, in spite of a recent increase, coal production in the next 20 years is expected to continue a decline that began in 2010.

Lego, who co-authored the study, says competition from other energy sources, not just regulations, is part of the reason for that decline.