Democrats win control of Congress as stock futures, Treasury yields and the dollar fall

Democrats take both chambers, with a bigger Senate win than expected

Democrats will control both chambers of Congress from January after the November 3 midterm elections, according to projections by the Associated Press, NBC and CBS. In the Senate they flipped Republican-held seats in Iowa, Kansas, Maine, Ohio, North Carolina, South Carolina and Texas, wiping out the 53-47 Republican majority. In the House they passed the 218 seats needed for control; the AP projected at least 220 seats, though tallies differ between outlets.

The House flip was widely expected; the Senate was the open question, and the margin was the surprise. James Talarico beat Ken Paxton in Texas, the first statewide Democratic win there since 1994. Adam Hamilton became the first Democrat to win a Kansas Senate seat since 1932. It is only the fifth time since the Second World War that a party has flipped both chambers in a midterm.

The final count is still moving. MS NOW estimates Democrats will reach at least 245 House seats, several Senate races including Mississippi were uncalled early on Wednesday, and media projections are not certified results. Senate Democratic leader Chuck Schumer said "against all odds, we Democrats have won the Senate." President Trump congratulated Democrats but said "I don't view it as a hit on me", and he has said he will use his veto as needed.

Overnight, S&P 500 futures fell 1.3% and Nasdaq-100 futures dropped 2.2%. Dow futures slid 0.8%, and losses then narrowed. The 10-year Treasury yield fell 6 basis points (hundredths of a percentage point) to 4.906%. The US dollar index slipped 0.37% to 101.34.

Why a change in Congress moves stocks, bonds and the dollar

The result gives Democrats the power to slow President Trump's agenda, not to replace it. They still lack the 60 Senate votes needed to get past a filibuster, and the president can veto their bills. Reuters reported that the new majorities set up gridlock for the rest of his term. For households and businesses, that likely means fewer big new laws on taxes, spending or tariffs in either direction.

Technology shares fell furthest. Lawmakers who control committees can call hearings, open investigations and draft rules, and Charu Chanana of Saxo said the sharper fall in Nasdaq futures reflected concern about more regulatory scrutiny of AI and Big Tech. The 2.2% drop there was close to double the fall in broader S&P 500 futures, which matters for anyone whose pension or index fund leans on the largest tech companies.

Bonds rose. No cause has been given beyond JPMorgan's pre-election view that long-term yields would fall in a Democratic wave. One possible explanation, and it is an assumption, is that gridlock makes large new tax cuts or spending harder to pass, which could mean less government borrowing. As bond prices rise, yields fall, and the 10-year yield dropped to 4.906%. Separately, the euro rose 0.4% to $1.1239. A weaker dollar makes imports cheaper for Americans and US exports more competitive.

The vote landed on a market that was already uneasy. The S&P 500 was down 1.31% over the past month as of November 2, though still up 10.81% for the year. The 10-year yield had closed near 5.05% on October 28. At its latest meeting, the Federal Reserve held its rate at 3.75% to 4%, and two officials wanted an increase.

What the result could mean for each market

The stock sell-off went further than one bank's forecast. Before the results, JPMorgan expected a -0.25% to +0.50% S&P 500 move if Democrats won big. Futures, which trade overnight and are not the same as the cash index, fell 1.3%. The cash market's open will show how much of that gap holds. If lawmakers signal tech investigations, the largest tech stocks could stay under pressure.

For bonds, the reaction matches what JPMorgan expected, with long-term yields falling. Whether that lasts depends partly on how much debt Treasury says it will sell in its refunding statement on Wednesday morning. A lighter borrowing plan would support lower yields. A heavier one could undo the overnight relief.

The dollar slipped too, and sterling and the euro gained overnight, with sterling up 0.37% to $1.3464. Whether that holds will likely depend on US data and the bond market in the days ahead. A softer dollar helps US exporters at the margin and raises the cost of foreign holidays for Americans.

Why the reaction may fade

Much of this was expected. JPMorgan put 66% odds on a Democratic wave, and more than $1.48 billion was wagered in prediction markets that pointed the same way. Futures had already pared losses by early morning. History is also mixed rather than grim: Ned Davis Research found the S&P 500 rose through year-end in five of eight midterm cycles since 1930 in which the president's party lost the House.

Nothing changes in law until the new Congress sits in January, and even then the filibuster and the veto limit what Democrats can pass. The bond rally also faces the Fed: two officials wanted a rate increase at the latest meeting, and the October jobs and inflation reports are scheduled for November 6 and November 10.

The next tests for markets

The first test comes on Wednesday morning with Treasury's refunding statement, plus October surveys of private hiring and the services sector. The October jobs report, October inflation data and the Fed's December decision follow.

The level to watch is the 10-year yield against its 4.9105% close on November 3. A move back toward 5.05% would suggest the election relief has faded. Final House and Senate counts, including Mississippi, will show how wide the new majorities are.

• 2026-11-04Treasury quarterly refunding statement and TBAC report: The size of planned debt sales will test whether lower Treasury yields hold.
• 2026-11-04October ADP employment and ISM services PMI: Early read on whether the economy, not politics, drives yields.
• 2026-11-06US October jobs report: Strong hiring could push yields back toward 5% and weigh on stocks.
• 2026-11-10US October CPI: Inflation shapes the Fed's next move after two officials wanted a rate rise.
• 2026-12-09Fed decision and projections: Sets the path for borrowing costs regardless of Congress.
• January 2027New Democratic-controlled Congress takes over: Hearings and legislation on tech and fiscal policy can begin only then.