Polymarket and Kalshi are pricing a Democratic takeover of Congress at nearly identical levels ahead of November’s midterms. As of Oct. 10, Polymarket’s Balance of Power market put the probability of Democrats winning both chambers at 62%, with more than $21.2 million traded; Kalshi assigned 61%, on approximately $35.87 million in volume, according to cryptonews.net. For cryptocurrency legislation, those prices point toward a possible change in negotiating power after the CLARITY Act’s Senate setback.
House advantage, Senate uncertainty
The next-most-likely configuration on both platforms is a Democratic House alongside a Republican Senate: 30% on Polymarket and 29% on Kalshi. Republican control of both chambers stood at 9% and 11%, respectively. A Republican House paired with a Democratic Senate was priced at 1% on Polymarket and 0.9% on Kalshi; Polymarket assigned other outcomes less than 1%, according to cryptonews.net.
Separate chamber markets show where the uncertainty lies. Polymarket priced Democratic House control at 91%, versus 10% for Republicans, and projected a 234-201 Democratic majority. Its Senate market gave Democrats 63% and Republicans 38%, with approximately $6.23 million traded and a projected 52-48 Democratic majority. Kalshi’s Senate contracts assigned Democrats 61% and Republicans 39%, with $57.3 million in volume. These are market prices, not assured results.
CLARITY’s next test may be a new Congress
The Digital Asset Market Clarity Act passed the House in July 2025 by a bipartisan 294-134 vote. Its framework would place qualifying digital commodities principally under the Commodity Futures Trading Commission (CFTC), while preserving Securities and Exchange Commission (SEC) authority over securities-related activity. Exchanges, brokers and dealers would have registration and disclosure obligations, with some exemptions for mature decentralized networks, according to cryptonews.net.
The Senate blocked a procedural motion on Sept. 15, 2026, in a 49-50 vote—11 votes below the required 60—even after Republicans incorporated 126 substantive changes sought by Democrats. Every Democrat present and four Republicans opposed advancing it. Cryptonews.net reports that disputes included officials’ cryptocurrency holdings, illicit-finance protections, developer liability and stablecoin rewards that compete with bank deposits. President Donald Trump’s reported cryptocurrency-related income exceeding $1.4 billion also sharpened demands for conflict-of-interest safeguards.
According to cryptonews.net, the bill’s prospects in the current session have effectively collapsed, and a successor would need fresh consideration when the 120th Congress meets in January 2027. Democratic control could bring different committee leadership and demands for stronger ethics rules, consumer protections and financial-crime provisions. It could also complicate the industry’s preferred allocation of authority toward the CFTC.
A congressional change would not itself prohibit cryptocurrency or automatically undo agency policy. Trump would remain president even if Democrats won both chambers, and legislation would still need his signature or enough votes to override a veto. The source also notes that Democrats do not share a single position on digital assets and that market-structure legislation has previously attracted bipartisan support.
What it means for prediction markets
- The Senate remains the closer contest. Polymarket’s 91% Democratic House price contrasts with Democratic Senate probabilities of 63% on Polymarket and 61% on Kalshi.
- Election contracts are not legislative contracts. The 61–62% sweep prices do not directly measure whether CLARITY, or a revised successor, will become law.
- Timing matters for policy outcomes. Fresh consideration in January 2027 could involve new committee priorities and another round of negotiations.
- Settlement terms warrant attention. Cryptonews.net notes that the platforms have specific rules covering chamber control, independents, ties and delayed results. Prices can also change before Nov. 3.