House Democratic Leader Nancy Pelosi warned that the changes could be harmful to consumers, hitting their wallets and their access to an independent media voice, as she cited press reports of a possible acquisition by Sinclair Broadcast Group (SBGI) of Tribune Media stations.

Under rules adopted in 1985, stations with weaker over-the-air signals could be partially counted against a broadcaster’s ownership cap. But last year, the FCC under Democratic President Barack Obama said those rules were outdated after the 2009 conversion to digital broadcasting — which eliminated the differences in station signal strength — and revoked them in September.

Federal law limits companies to owning stations serving no more than 39 percent of U.S. television households; there is a dispute over whether the FCC has the authority to amend the ownership limits.

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The 2016 decision did not require any company to sell existing stations, but could bar new acquisitions. Twenty-First Century Fox (FOX) in September challenged the FCC rule in federal court.

FCC Chairman Ajit Pai said in March that he wanted to repeal the Obama FCC decision and “launch a comprehensive review of the national ownership cap” later this year.

In a letter, Pelosi and Representative Frank Pallone, who is the ranking Democrat on the House Energy and Commerce Committee, urged Pai to drop the plan, which could allow the Sinclair-Tribune tie-up.

A Frenzy of Telecom Deals Might Be on the Horizon

“That would be bad news for consumers in Tribune’s markets in two ways: First, consumers would lose an independent voice in their media market; and second, consumers could see their cable bills go up because Sinclair charges cable operators more than Tribune for retransmission consent,” they wrote.

Another Democrat, Representative Anna Eshoo, wrote Pai asking him to drop the plan, saying that further consolidation “will ensure there are fewer independent news outlets serving as a counter-balance to misleading or inaccurate information.”

Tribune and a spokesman for Pai both declined comment.

Reuters reported in March that Sinclair had approached Tribune to discuss a potential combination, in a deal that would hinge on regulations being relaxed.

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Pai’s broad FCC ownership review could launch a new wave of consolidation in the broadcast television industry, analysts and companies said.

CBS Corp lobbyist John Orlando urged the FCC in January to reverse the Obama decision and reinstate the prior rule, citing increased competition.

“Time is of the essence in providing broadcasters the ownership breathing room they so desperately need to compete with other video services,” he said, according to a CBS FCC filing. “Our industry has been frozen in time for more than three years…. Since then, our video competitors have marched on unfettered by ownership limits,” he said, referring to online outlets and cable companies.