A government shutdown in the United States occurs when Congress and the President fail to pass appropriations bills to fund government operations and agencies. This can lead to the closure of non-essential government services and the furlough of federal employees.

The most recent government shutdowns have been caused by disagreements over budget allocations, border security, and healthcare. In 2018-2019, a 35-day shutdown was the longest in US history, affecting over 800,000 federal workers.

Government shutdowns can have significant economic and social impacts, including delayed payments to federal contractors, reduced access to public services, and strain on national parks and monuments. The effects can also be felt by citizens who rely on government services, such as those seeking passports or tax refunds.

Historically, government shutdowns have been relatively rare, but their frequency has increased in recent decades. As the US government continues to face budget and policy challenges, the possibility of future shutdowns remains a concern for citizens, lawmakers, and the global community.