Democrats seize both chambers: What control of Congress means for 2027-2028

Voters cast their ballots on Tuesday, November 3, 2026, in a midterm election that resulted in a decisive shift of power in Washington. Democrats won control of the U.S. House of Representatives and the U.S. Senate. In the House, Democrats won 238 seats compared to 146 for Republicans, a net gain of 33 seats. In the Senate, Democrats won 20 seats while Republicans won 13, with two races remaining uncalled from November 5. This outcome represents a resounding victory for Democrats, driven by voter dissatisfaction with the administration's handling of the economy and the war in Iran.

The immediate implication of this shift is the activation of new investigative powers in both chambers. Corruption emerged as a top concern for voters, with roughly half of voters citing it as crucial to their decision. Hakeem Jeffries, the New York representative expected to become House Speaker, has indicated that the new majority will use subpoena powers to probe the self-enrichment of President Donald Trump and his associates. Jeffries has not ruled out a third impeachment effort against the president. In the Senate, Chuck Schumer, who is poised to return as majority leader, stated that Americans want the government to clean up corruption, particularly regarding the president's stock market trades.

Rep. Robert Garcia of California, the ranking Democrat on the Oversight and Government Reform Committee, has outlined five priorities for the House agenda. These include an examination of Trump family business dealings, the administration's handling of the Jeffrey Epstein investigation, and the operations of Immigration and Customs Enforcement. In the Senate, Sen. Richard Blumenthal of Connecticut, who is expected to chair the Homeland Security Committee's Permanent Subcommittee on Investigations, said his panel will investigate the president's real estate projects in the capital and his crypto dealings with special envoy Steve Witkoff. These investigations are expected to be sprawling, utilizing the increased staff and resources that come with a congressional majority.

The new leadership faces a tight timeline as the 119th Congress enters its final two years. Jeffries is preparing a 100-day agenda that focuses on affordability and oversight. Democrats are working to link the costs of public corruption to the economic concerns affecting American households. Exit polls indicated that record Election Day diesel and gasoline prices helped push voters toward Democrats. The new leaders aim to address these cost-of-living issues through legislative action and aggressive oversight of federal agencies that oversee energy and trade policies.

Control of both chambers also changes the dynamic for confirming presidential nominees. With a Democratic Senate, the confirmation process for cabinet officials and judges becomes more contested. Democrats are planning to ramp up congressional oversight of cabinet officials. This includes scrutinizing the actions of the Department of Defense and the Department of Homeland Security. Defense Secretary Pete Hegseth recently signed memos allowing the National Guard to use military vehicles and boats in Washington, D.C., a move that has drawn legal challenges from the District. The new Senate majority may look closely at these executive actions during confirmation hearings and budget negotiations.

The 2028 presidential race is already being shaped by these midterm results. The race to succeed President Trump is set to intensify, with a field of Democrats positioning themselves for the nomination. Abdul El-Sayed's victory in Michigan made him the first Muslim American U.S. Senator, adding a historic dimension to the Democratic bench. His victory speech, where he used the Arabic term "habibi" to address Vice President JD Vance, was celebrated by Arab communities and highlighted the changing demographic landscape of the party. These victories are seen as a springboard for 2028, with candidates seeking to build on the momentum of the 2026 wave.

Republicans, now in the minority, are strategizing to survive the final two years of Trump's term. President Trump suggested the election losses would not change his calculations regarding the war in Iran. He stated, "If we have to do the rest of the Iran thing, we're very much locked in." Analysts, including Brian Haggerty of Defense Priorities, said Trump may feel less restrained by Congress now that the political damage is done. However, the new Democratic Congress has the power to influence funding and authorization for military operations, creating a potential standoff over the war's trajectory.

The economic implications of the new congressional control are also significant. Investors are focused on the risk of standoffs over the government's borrowing limit. The potential for political brinkmanship could unsettle markets, particularly if the new Democratic leadership uses the debt ceiling as a lever for policy changes. The price of Brent crude oil tumbled below $95 on Wednesday after the election, touching its lowest level in two months. This market reaction suggests that investors do not expect immediate major strikes on Iran, but they remain cautious about the new political dynamics in Washington.

In the Senate, the balance of power is close, with Democrats winning 20 seats and Republicans winning 13, with two uncalled. Seven seats changed party control, all to Democrats. This narrow majority means that every vote will be critical in the final two years. The Senate is expected to conduct similar investigations to the House, focusing on the same areas of potential corruption. Sen. Schumer emphasized that no American should have to make tradeoffs at the supermarket while the president makes inside trades on the stock market. This rhetoric is expected to guide the Senate's agenda as it moves into 2027.