A cut in corporate tax rates directly boosts corporate after-tax net income, acting as a major tailwind for US equities, particularly the Russell 2000 which is composed of domestic-revenue-heavy small caps. If passed, this would be a strong 'risk-on' signal, driving up the S&P 500 and Russell 2000. Conversely, tax cuts could increase deficit and inflation expectations, thereby pushing up US Treasury yields (US 10Y Yield) and the US Dollar Index (DXY). This is an event with significant macro market impact.