WASHINGTON — Democrats heralded a new era in American politics Wednesday after voters broke Republicans’ control of government and delivered a pivotal rebuke of President Donald Trump.

Victories that handed Democrats control of the House and Senate on Tuesday night came in historic form, with margins outstripping expectations, posting double-digit shifts to the left by nearly every voting bloc. In some of the reddest states in the union, even Republican redistricting efforts designed to shield districts from competition were not enough to prevent Democratic inroads.

The sweeping wins were driven by a rare coalition of voters across nearly all walks of American life, in cities and countryside, from the rural Midwest and Deep South to a traditionally conservative mid-Atlantic. Not since voters were repulsed by President Richard Nixon after the Watergate scandal half a century ago has the popular vote swung so decisively in a single election cycle.

The wave was so comprehensive that it handed Democrats wins that for decades have been unthinkable — flipping Senate seats in Kansas, South Carolina and Texas — and gained a majority of governors’ seats for the first time in a generation. How large their House majority would be remained to be seen as states continued counting votes.

Statehouses in Arizona, Georgia, Minnesota, Michigan, North Carolina and Pennsylvania flipped for Democrats — and, as ballots were counted, Texas hung in the balance — while the party wrested at least five gubernatorial seats from Republican control.

“The only thing unusual here is scale,” said Andrew Sinclair, an assistant professor of government at Claremont McKenna College. “It is not at all unusual in American political history to see a poorly led party lose badly in the next election.”

“To build anything enduring out of this election,” he added, “Democrats are going to have to do the hard work of having honest conversations with each other about how such a diverse group of people can cooperate and deliver results.”

The seismic routing appeared to validate the populist messages Democrats — in many cases, both progressives and moderates — ran on, from lowering costs to addressing healthcare and housing issues to confronting the power of corporations in American society.

Party leaders vowed the morning after to respond to voters’ mandate on affordability and to check executive power, as members of both parties predicted the results would reshape politics for years.

Senate Minority Leader Chuck Schumer, D-N.Y., called it “a generational remake of the Senate map that is going to change America not only now but on into the future.”

He pledged Democratic senators would be intent on working for their constituents and delivering on promises to relieve Americans’ economic “anguish” and clean up government corruption. He also nodded to the responsibility the party now shoulders.

“With this majority, Americans have given we Democrats the opportunity to prove ourselves worthy of their trust, and that’s our most important job,” Schumer said.

In every demographic, whether cut by gender, race, age, education or region, voters shifted to the left compared to 2024, in most cases by double digits, according to New York Times data. Men 18 to 44 moved to the left by 31 percentage points, Latinos by 28 points, voters under 30 by 32 points.

The nation also elected several historic firsts, including the first Muslim senator, the first openly gay male senator and the first Black female governor, in spite of Republican campaign attacks around identity. And Democrats defied Republican redistricting efforts in at least 11 districts, including four in Florida, four in Texas, one each in Ohio, Alabama and North Carolina.

The results showed the success of economic populist messages, said Alex Jacquez, a Democratic consultant and former policy adviser to Sen. Bernie Sanders, I-Vt.

“The throughline for all the Democrats (who won) is the corporate-friendliness era of moderation is over and we are much more squarely in the prairie populism of the ’80s and ’90s,” Jacquez said. “You saw a real resurgence of that.”

The unambiguous nature of the victory helped repel the notion that Republicans might attempt to challenge election results, as Trump had telegraphed as a possibility before the election.

Republicans swiftly began trading blame as they parsed the results.

Florida Gov. Ron DeSantis, a likely 2028 presidential contender, predicted the results could “reverberate for the next decade or most,” saying the routing was worse than anticipated.

It was “close to an extinction-level event for Republicans across the country,” DeSantis told reporters Wednesday.

Republicans will now face questions about the party’s future direction, and how they prevent a repeat of Tuesday’s wave in 2028. Trump signaled his willingness to accept the election results and work with Democrats, while evading blame for himself.

“For Republicans, it is clear that President Trump has led the party to disaster — again,” Sinclair said. “Looking to the future, Republicans should reconsider following his style of governance and his policy agenda.”

Democrats will now have to deliver on the affordability and accountability agenda. With full control of Congress, they will be able to send legislation to Trump’s desk, and could force him to sign bills or make unpopular vetoes. Schumer told reporters Wednesday that the party would work to lower costs “with the president or without him, period.”

“It is critically important now that Democrats, now that we’ve been given the keys to the car here, we’re able to drive it,” Pennsylvania Gov. Josh Shapiro, who won reelection Tuesday, said on MS NOW’s “Morning Joe.”

Shapiro, also a likely presidential contender, projected confidence in the new majorities and said Democrats would need to show that they “can legislate, bring down costs, end these wars.”

The mood among Democrats was quickly turning to “resolute” amid the jubilation, said consultant Andrew DeStefano. Party operatives want to build lasting power, he said, not become just another swing in the electoral pendulum.

“Folks don’t want this to be the latest ping-pong volley,” DeStefano said. “Laser focused on how we can deliver on some achievable concrete policy.”

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