DEMOCRATS have won control of both chambers of the United States Congress in the November 3 midterm elections, ending the Republican Party’s control of the legislature.
The victories dealt President Donald Trump a major political setback ahead of the final two years of his presidency.
The Associated Press reported that Democrats secured the House of Representatives in addition to the Senate, giving the party control of Congress for the first time in the current political cycle. The victories extended into traditionally Republican states, including Texas, Kansas, Iowa, Ohio and South Carolina, where Democratic candidates defeated Republican opponents in closely watched Senate contests.
According to AP, Democrats flipped House districts Trump had won by as much as 18 percentage points in 2024.
In its election analysis, CNN described the result as a major shift in the American political landscape, reporting that Democratic gains were evident in rural parts of the Midwest and heavily Latino congressional districts where Trump had made significant advances two years earlier.
Democrats flip key Senate seats
Before the election, Republicans held the majority, and Democrats needed to win several Republican-held seats while retaining their own.
Democrats secured at least seven Republican-held Senate seats, according to AP, with victories in Kansas, Iowa, Texas, Ohio, Maine, North Carolina and South Carolina.
For instance, in Texas, Democratic state Representative James Talarico defeated Republican Attorney-General Ken Paxton, ending the Republican Party’s hold on the state’s Senate seat.
In Ohio, former Democratic Senator Sherrod Brown returned to the Senate after defeating Republican incumbent Jon Husted. Brown, who previously represented Ohio in the Senate for three terms, made a political comeback in a state Trump won in the 2024 presidential election.
In Iowa, Democrat Josh Turek, a state lawmaker and Paralympian, defeated Republican Representative Ashley Hinson to win the Senate seat being vacated by retiring Republican Senator Joni Ernst.
Turek’s victory was another setback for Republicans in a state Trump won by 13 percentage points in 2024.
Democrats make gains in the House
The Democratic victories were not limited to the Senate. The party also won control of the 435-member House of Representatives, where it flipped several Republican-held seats and retained seats targeted by the GOP.
One of the notable victories was in Indiana’s 5th Congressional District, where Democrat J.D. Ford defeated three-term Republican Representative Victoria Spartz.
Democrats retained seats in Texas and Ohio that Republicans had targeted through redistricting, among others.
The Democratic gains similarly extended to state governments, with candidates winning governorships in states previously controlled by Republicans.
What Democratic control means for Trump
Democratic control of the House and Senate will make it more difficult for Trump to push his legislative agenda through Congress during the final two years of his presidency.
The House plays a central role in originating federal spending and tax legislation, while both chambers are responsible for passing bills and conducting oversight of the executive branch.
With Democrats controlling the chambers, they will lead congressional committees and have greater power to summon government officials, investigate federal agencies and scrutinise the administration’s policies.
Trump, however, remains president until January 2029 and retains executive powers, including authority over the conduct of US foreign policy. A Democratic majority in Congress does not automatically reverse policies introduced by his administration.
The president could also veto legislation passed by Congress, meaning Democrats would need sufficient support from Republicans to override a presidential veto.
What the outcome could mean for Nigeria
The change in congressional control could have implications for Nigeria, particularly in security cooperation, trade and foreign assistance.
Nigeria is an important US partner in Africa. A recent report by the US Congressional Research Service, titled Nigeria: Overview and U.S. Policy, described the country as the United States’ second-largest trade partner in sub-Saharan Africa and noted that Nigeria has frequently ranked among the top recipients of American foreign assistance.
The report identified security, governance and human rights concerns, including religious freedom, as issues that have attracted attention from members of the US Congress.
Religious freedom is another issue likely to remain prominent in congressional discussions about Nigeria.
The Congressional Research Service reported that members of the 119th Congress had increased their focus on violence against Christians in Nigeria. Some lawmakers had pressed for Nigeria’s designation as a Country of Particular Concern over religious freedom, while others criticised the designation for failing to reflect the complex causes of violence in the country.
The Trump administration designated Nigeria a Country of Particular Concern in October 2025. The decision followed concerns about alleged attacks on Christian communities and allegations of religious persecution.
The CRS report documented disagreements among US lawmakers over the designation, with some supporting the administration’s position and others arguing that violence in Nigeria affects different religious communities and has multiple causes.
A Democratic-controlled Congress could provide a platform for further hearings and scrutiny of the administration’s position, as well as the Nigerian government’s response to insecurity and human rights concerns.
Nigeria has also been affected by changes to US foreign assistance under the Trump administration.
Mustapha Usman is an investigative journalist with the International Centre for Investigative Reporting. You can easily reach him via: musman@icirnigeria.com. He tweets @UsmanMustapha_M