Preliminary US midterm results suggesting Democrats may take both chambers triggered the biggest one-day USD drop since Oct. 2, with the dollar index (DXY) down about 0.4% and CHF and JPY the strongest FX performers — the franc up nearly 1% and the yen roughly 0.7% in Asian trade; AUD lagged. Markets flagged a Democratic win could bring tighter regulation for tech and AI, a downside risk for US equities and the dollar. Conversely, a politically divided Washington that curbs further tax cuts or s

Preliminary US midterm results suggesting Democrats may take both chambers triggered the biggest one-day USD drop since Oct. 2, with the dollar index (DXY) down about 0.4% and CHF and JPY the strongest FX performers — the franc up nearly 1% and the yen roughly 0.7% in Asian trade; AUD lagged. Markets flagged a Democratic win could bring tighter regulation for tech and AI, a downside risk for US equities and the dollar. Conversely, a politically divided Washington that curbs further tax cuts or spending could boost US Treasuries. Crédit Agricole strategist David Forest warned the dollar’s reliance on an AI-led rally exposes it to regulatory setbacks that could weigh on the currency, but said the decline may not persist: a breakdown in US–Iran talks and a rebound in oil could lift inflation expectations and Fed rate-hike bets, supporting the dollar, and a presidential veto could block tougher congressional AI rules. SMBC Nikko strategist Rinto Maruyama said the dollar may ultimately reverse its losses.