Cryptocurrencies declined during Tuesday's Asia trading session as optimism faded over progress on a pivotal US regulatory bill this week, while the prospect of rising interest rates pressured risk assets. Bitcoin, the largest digital asset, briefly approached $80,000 during US hours but pulled back to roughly $77,600 by 12:30 PM Singapore time, marking a 1.9% drop. Meanwhile, Ethereum, the second-largest cryptocurrency, fell 2.8%. Notably, over the past three weeks, Bitcoin has repeatedly failed to hold above $80,000, signaling weaker near-term buying demand. US-listed Bitcoin exchange-traded funds (ETFs) saw net outflows exceeding $460 million last week, snapping a three-week streak of substantial inflows, while Strategy (MSTR.US), one of the largest corporate buyers of the cryptocurrency, has made no purchases over the past two weeks.

Cryptocurrency markets had rallied during Monday's US trading session. Data from the prediction market Polymarket indicated that the probability of the Digital Asset Market Clarity Act (CLARITY Act) passing this year had climbed to over 30%. However, that likelihood fell back to 18% in early Asia trading on Tuesday as Democrats raised objections to the latest Republican proposal. US Senator Mark Warner told reporters at the Capitol that a group of Democratic negotiators would present a counter-proposal to Republicans ahead of a key procedural vote on the CLARITY Act scheduled for Wednesday. The legislation aims to draw clearer regulatory boundaries between the Securities and Exchange Commission (SEC) and the Commodity Futures Trading Commission (CFTC), while establishing federal rules for exchanges, token issuers, and decentralized finance platforms. Greater regulatory clarity would likely attract institutional capital and benefit Coinbase (COIN.US) along with other trading, custody, and blockchain infrastructure providers.

The comprehensive crypto regulation bill has stalled for a year amid partisan disputes. To clear this procedural hurdle and advance, the CLARITY Act needs 60 votes in the Senate, where Republicans hold 53 seats. That means several Democrats must cross party lines to move it forward, paving the way for final passage. Senate Majority Leader John Thune told reporters earlier Monday that progress had been made in recent days, though he could not confirm whether sufficient votes existed to push the bill through. If the procedural vote fails, it would prolong uncertainty and could trigger short-term volatility in the crypto market. Rachel Lucas, an analyst at BTC Markets, cited prediction market odds, noting: "The probability of the CLARITY Act being signed into law in 2026 stood above 70% in May, dropped to the low teens by August, and rebounded to near 30% on Monday. This is a market without a stable read." She added, however, that "a counter-proposal aligns with an ongoing negotiation, not a collapsed one."

Damian Roh, Chief Investment Officer at Ericsenz Capital, observed that traders are looking to lock in some profits ahead of the CLARITY Act vote. "While the market has priced in little chance of the bill passing, if it fails, a modest downside move is likely," he said. The primary sticking point for CLARITY Act passage has centered on ethics provisions. Democrats argue these measures are insufficient to prevent former President Donald Trump from continuing to profit from crypto ventures, which he reported generated $1.4 billion in revenue last year. Other contentious issues, including bank concerns that stablecoins could siphon away deposits, have also drawn heavy lobbying efforts. Republican senators unveiled a final draft of the bill containing modifications to some of the most disputed points. The new version grants the Treasury Secretary authority to intervene when deposit outflows cause "harm" to community banks. It also adds ethics constraints for the president and other elected officials who hold cryptocurrency. These new rules would compel the president to divest virtual assets or place significant holdings in a blind trust, subject to financial penalties for noncompliance. The draft also empowers state attorneys general to play a role in enforcing the ethics rules.

For some industry observers, the Federal Reserve's interest rate decision this week could be the most impactful event for digital asset markets. Swap market data shows traders currently price in a greater than 90% probability that the Fed will hike rates by 25 basis points on Wednesday.