Republican presidential nominee Donald Trump decried the merger before it was even official, announcing at a campaign rally in Gettysburg, Pennsylvania Saturday afternoon that it would “destroy democracy.” His campaign later issued a statement, steeped in early Twentieth century populist rhetoric, promising that a Trump administration would “break up” and “prevent” such economic consolidation in the future.

Democratic presidential nominee Hillary Clinton’s running mate, Tim Kaine, echoed the sentiment on Sunday, saying on NBC News’ Meet the Press that he was “pro-competition” and that “less concentration… is generally helpful, especially in the media.” Clinton campaign spokesman Brian Fallon also evinced skepticism about the deal, telling reporters that “marketplace competition is a good and healthy thing for consumers.”

“Donald Trump will break up the new media conglomerate oligopolies that have gained enormous control over our information, intrude into our personal lives, and in this election, are attempting to unduly influence America’s political process,” the campaign’s statement read.

Both major parties’ campaigns’ decision to distance themselves from the deal is an indication of a rising and powerful populist sentiment among voters on both sides of the ideological aisle this election season.

Since late 1970s, the two federal agencies primarily tasked with preventing monopoly control, the Department of Justice and the Federal Trade Commission, have systematically scaled back their anti-trust enforcement actions on the grounds that the bigger the company, the more efficient it is. Large corporations, like Walmart, for example, are able to keep consumer prices low by negotiating lower prices with suppliers.

But in recent months, as economic populism has swept the American electorate on both the right and the left, Republican and Democratic lawmakers have renewed attention to the problem of monopoly. Last year was the biggest year for corporate consolidation in U.S. history, with $3.8 trillion dollars worth of mergers and acquisitions.

In March, a handful of Republican lawmakers, including Tea Party hero Utah Sen. Mike Lee, argued at a Senate Judiciary subcommittee hearing on antitrust oversight, the first meeting of that committee in three years, that the FTC and Justice Department were not doing enough to even the economic playing field.

In April, the White House issued an executive order reminding federal agencies to take actions that would promote competition. “Certain business practices such as unlawful collusion, illegal bid rigging, price fixing, and wage setting, as well as anticompetitive exclusionary conduct and mergers stifle competition and erode the foundation of America’s economic vitality,” the report read. The Obama administration has also scuttled proposed mergers between AT&T and T-Mobile, Sprint and T-Mobile, and Pfizer and Allergan.

Federal regulators will have to approve the merger of AT&T (T) and Time Warner (TWX) before it is allowed to proceed.

In a statement late Saturday night, AT&T and Time Warner announced that their union was a “perfect match” and would “bring a fresh approach to how the media and communications industry works.”

This article originally appeared on Time.com.