The United States federal government officially shut down at midnight on October 1st, 2025, following the Senate's adjournment without passing continuing appropriations bills. The shutdown, triggered by disputes over funding for immigrant healthcare, began as the Senate prepared for critical votes to potentially end the lapse in federal operations. Senator Catherine Cortez Masto (D-Nev.) voted with Republicans on a clean continuing resolution (CR) which was ongoing as of 3:05 AM UTC on October 1st. During the reporting window from 2:36 AM to 3:05 AM UTC on October 1st, the shutdown was confirmed as Senate Democrats blocked a Republican bill to extend the funding deadline, according to @repdarrellissa. Senator Mark Kelly stated that President Trump and Republicans in Congress chose to shut down the government rather than prevent health premium spikes for millions of Americans. Senator John Curtis expressed concern over Congress's reliance on short-term funding measures and the failure of a measure he supported due to insufficient Democratic support. In other developments, Kansas City Executive Frank White Jr. faced a recall election with 85.2% voting 'Yes' to recall him, according to @OpenSourceZone. Former President Donald Trump congratulated someone on an engagement, posting "What a great coupleāCongratulations! President DJT" on his X account. Previous reports indicated that the shutdown could lead to furloughs for up to 750,000 federal employees daily, costing approximately $400 million per day, according to the Congressional Budget Office. The Library of Congress was visibly closed with signs indicating its closure, as reported by Scott Thuman. The shutdown is the first since 2018-2019, as noted by @repdarrellissa. Disagreements over healthcare funding for immigrants were central to the funding dispute. Senator Ron Johnson had previously asserted that Democratic proposals included funding for "illegal aliens," while others debated whether proposals covered only "immigrants with legal status." Senator Bernie Sanders affirmed his stance, stating "Damn right" when asked if he would vote no on funding bills. Representative Gil Cisneros criticized President Trump for suggesting military leaders use American cities as "training grounds" to fight against what he called a "war from within."