Roger Edwards, the Highlands Ranch Republican challenging five-term U.S. Rep. Mike Coffman in a primary, tore into the incumbent’s position on net neutrality in an email to supporters Monday, calling it “not conservative” and contrary to President Donald Trump’s plan to cut regulations.

“Net neutrality is a progressive left-wing cause. Mainly supported by those who do not believe in free market principles,” Edwards wrote, citing a recent Coffman column published by the Highlands Ranch Herald on the topic.

“The Congressman also advocates a ‘light touch’ of government regulations. Can anyone explain a ‘light touch’ of government? It simply does not exist. While President Trump is eliminating regulation, Mike Coffman is wanting more regulations. It makes no sense as conservative policy,” Edwards continued.

In the article, Coffman lamented the past 15 years’ frequent Federal Communications Commission internet policy swings “that have left both businesses and consumers confused,” including the FCC’s Dec. 14 repeal of Obama-era “net neutrality” rules.

“As in any other sector of our economy, frequent regulatory fluctuations are not good for internet providers nor for those who rely on network access for both business and personal purposes. It is my view that light-touch regulations are necessary so that internet service providers, content creators and consumers have the regulatory certainty they deserve so they can succeed – and that should originate in Congress,” Coffman wrote.

Pointing to legislation he’s drafting to “uphold the broad principles of an open internet and ensure effective oversight of broadband internet service,” Coffman cautioned that it’s a complex topic that will take time to sort out.

“While the conversation on this subject has just started, rest assured I will continue the fight to keep the internet free, fair and open to all,” he concluded.

Edwards was having none of it.

“Mike also warns the reader about letting unelected bureaucrats develop policy, you know, those people who know the subject matter. Frankly, I’m more worried about elected officials who think they know something about technology, mucking up the productivity of the marketplace,” he wrote. “The internet is open, free and fair. Tell Mike Coffman no government tax on the internet and support President Trump.”

The first-time candidate for office is mounting a campaign from the right to unseat Coffman in Colorado’s 6th Congressional District, considered one of the nation’s most evenly divided swing seats.

In a previous email to supporters, Edwards blasted Coffman for distancing himself from Trump, contending that the “only way for Republicans to win Colorado 6th CD is to be the ‘Not’ Mike Coffman candidate.”

“I am the ‘Not’ Mike Coffman candidate,” Edwards added.