The US Senate recently failed to advance competing proposals from the Democratic Party and Republican Party to extend enhanced Affordable Care Act (ACA) tax credits, threatening significant health insurance premium increases for millions of Americans.Both legislative measures, including a Democratic plan estimated to cost $90 billion, did not secure the necessary 60 votes, underscoring a deep partisan divide over healthcare reform as current ACA subsidies are set to expire.This legislative deadlock, which US Senate Democratic Leader Chuck Schumer criticized, raises concerns about continued access to affordable healthcare and potential coverage loss for approximately 2 million people as legislative action shifts to the US House.