WASHINGTON — Democrats aim to flip three seats to gain Senate control, concentrating resources on the industrial Midwest. The strategy targets Republican-held states like Ohio and Wisconsin, where open seats and competitive incumbents present opportunities. A shift of just two seats would push Senate Majority Leader John Thune into the minority.
The financial sector and corporate interests are pouring money into these battleground states. Campaign finance disclosures for Q2 2026 show political action committees from banking, manufacturing and energy industries have already committed more than $35 million to House and Senate races in Michigan, Ohio and Wisconsin—money aimed at shaping outcomes on taxes, trade and regulation.
Michigan's open Senate seat, vacated by retiring Sen. Gary Peters, is the clearest example of who's fighting for what. Rep. Haley Stevens, endorsed by Peters, faces progressive Abdul El-Sayed in the Democratic primary. Stevens represents the party's moderate wing; El-Sayed is pushing harder on economic reform.
Stevens draws heavy support from corporate PACs and financial services executives. Her Q2 filings show $2.8 million raised, with significant contributions from groups tied to the automotive and pharmaceutical industries. Those donors want a stable, predictable regulatory environment in Washington.
El-Sayed relies on grassroots funding and labor union backing. His platform includes stricter corporate oversight and higher taxes on top earners—positions that have put him at odds with traditional business lobbies. He raised $1.1 million in Q2, primarily from small-dollar donations and progressive advocacy groups.
In Wisconsin, the race for an open seat pits a mainstream Republican against a democratic socialist state representative. Agricultural and manufacturing interests are particularly active, with more than $6 million in independent expenditures already reported.
The outcome in these Midwestern states will directly shape President Trump's second-term legislative agenda. A Republican-controlled Senate blocks Democratic priorities on climate and social spending. A Democratic majority opens the door to new financial regulations and tax changes that corporate America is spending heavily to prevent.
The U.S. Chamber of Commerce has earmarked $15 million for Senate races this cycle, with a large share targeting Midwestern states to back business-friendly candidates. Its spending typically supports candidates who oppose stricter environmental regulations.
Labor unions, including the AFL-CIO, have committed more than $10 million to back progressive candidates in Michigan and Wisconsin, targeting races where worker protections and collective bargaining rights are on the line.
The National Association of Realtors PAC, known for bipartisan giving, has contributed $2.5 million to candidates across the three states. Its focus is housing policy and blocking new mortgage market regulations.
Primary elections in Michigan and Wisconsin are scheduled for late Aug. Those contests will determine which candidates face off in November, setting the stage for a final spending surge in the race to control the 119th Congress.
