What Happened to United States Capitol?
The United States Capitol, a symbol of American democracy, has served as the meeting place for the U.S. Congress since 1800. Following the January 6, 2021, attack, the building has undergone significant security enhancements and operational reforms to protect the legislative process and its occupants. As of mid-2026, the Capitol continues to function as the seat of government, while also undergoing ongoing preservation projects and adapting to an evolving threat landscape against lawmakers.
Quick Answer
The United States Capitol remains the active seat of the U.S. Congress, having implemented extensive security upgrades and operational changes since the January 6, 2021, attack. These measures include increased Capitol Police staffing, enhanced intelligence capabilities, and improved coordination with external law enforcement. Ongoing preservation projects, such as the East Front exterior work, are underway in 2026, and the Capitol Visitor Center continues to host tours and public events, including commemorations for America's 250th anniversary.
📊Key Facts
📅Complete Timeline14 events
Cornerstone Laid by President Washington
President George Washington laid the cornerstone of the U.S. Capitol, marking the official start of construction for the legislative building.
First Occupied by Congress
The U.S. Congress moved into the unfinished Capitol building, with the Senate occupying a ground-floor chamber and the House meeting in a large room on the second floor.
Burned by British Troops
During the War of 1812, British forces set fire to the Capitol, severely damaging its interior, though the exterior walls largely survived.
New Cast-Iron Dome Completed
Amidst the Civil War, the iconic cast-iron dome, designed by Thomas U. Walter, was completed, significantly altering the Capitol's silhouette.
Capitol Visitor Center Opens
The Capitol Visitor Center (CVC), a large underground complex, opened to the public, serving as the main entrance and providing exhibition space and visitor services.
Attack on the U.S. Capitol
A mob of rioters stormed the Capitol, breaching security, clashing with police, and occupying the building in an attempt to prevent the certification of the 2020 presidential election results.
Honoré Report Recommends Sweeping Security Changes
A report commissioned by House Speaker Nancy Pelosi, led by Lt. Gen. Russel Honoré, recommended significant changes to Capitol security, including expanding the Capitol Police's intelligence team and establishing a quick-reaction force.
USCP Reports Over 100 Security Advancements
Capitol Police Chief Tom Manger announced that the department had implemented over 100 security improvements since January 6, 2021, including better coordination with other agencies and legislative changes allowing the chief to call in the National Guard.
West Front Exterior Preservation Completed
Phase 3 of the multi-phased project to preserve the Capitol's exterior stone and metals, specifically on the West Front, was completed.
Significant Increase in Threats Against Lawmakers
The U.S. Capitol Police investigated nearly 15,000 threats against members of Congress, marking a 58% increase from 2024, indicating a growing threat environment.
National Defense Authorization Act (NDAA) for 2026 Passed
Both chambers of Congress passed the National Defense Authorization Act (NDAA) of 2026, authorizing approximately $901 billion for defense programs.
USCP Chief Addresses Rising Threats and Budget Needs
USCP Chief Michael G. Sullivan presented a formal statement to the Committee on Appropriations Subcommittee, detailing the alarming increase in threats against the Congressional community and requesting critical funding for FY2027 to enhance member protection and modernize security infrastructure.
Congress Considers Raising Capitol Police Retirement Age
Lawmakers are working to raise the retirement age for U.S. Capitol Police officers in response to rising threats against members and the department's struggles with recruitment and retention.
Capitol Visitor Center Hosts 'Revolutionary Ideals' Event
The U.S. Capitol Historical Society hosted an event titled 'Revolutionary Ideals and the Making of the Constitution' at The Spire, coinciding with ongoing public access and tours at the Capitol Visitor Center.
🔍Deep Dive Analysis
The United States Capitol, a neoclassical edifice on Capitol Hill in Washington, D.C., has been the legislative heart of the nation since 1800, embodying the ingenuity and determination of the American people through periods of construction, destruction, and restoration. Its cornerstone was laid by President George Washington in 1793, and it has since grown to accommodate the expanding government, notably with the addition of new wings and the iconic cast-iron dome completed during the Civil War.
The Capitol faced one of its most significant modern challenges on January 6, 2021, when a mob of rioters, incited by false claims of election fraud, stormed the building in an attempt to disrupt the certification of the 2020 presidential election results. This unprecedented attack led to breaches of police perimeters, assaults on Capitol Police officers, and the occupation and vandalism of parts of the building for several hours. The event resulted in multiple deaths and numerous injuries, exposing critical failures in intelligence, operational planning, and leadership within Capitol security.
In the aftermath, a comprehensive review of Capitol security, led by Lt. Gen. Russel Honoré, recommended sweeping changes, which the U.S. Capitol Police (USCP) has been actively implementing. These reforms, detailed in reports from March 2021 onwards, include expanding the USCP's intelligence team, increasing manpower, enhancing dignitary protection for members of Congress, and improving training for civil disturbance units. Crucially, legislation was passed to grant the Capitol Police chief emergency authority to request National Guard support without prior board approval, addressing a key communication breakdown during the attack. By early 2023, the USCP reported having implemented over 100 advancements, aiming to be 'stronger and better prepared' to prevent future large-scale attacks.
As of 2026, the Capitol continues to operate with heightened security. Threats against members of Congress have seen a dramatic increase, with nearly 15,000 threats investigated in 2025—a 58% rise from 2024—and 2026 on track to exceed these numbers. This persistent threat environment has led to ongoing efforts to 'right-size' the USCP workforce and modernize security and technology infrastructure, as highlighted in Chief Michael G. Sullivan's March 2026 statement to Congress. Lawmakers are also considering raising the retirement age for Capitol Police officers to address staffing shortages.
Beyond security, the Capitol complex is undergoing significant preservation and renovation work. Phase 3 of the West Front exterior preservation was completed in 2024, and Phase 4, focusing on the East Front, is anticipated to begin in the summer of 2026. The Capitol Visitor Center remains open, offering tours and hosting special programs, including commemorations for America's 250th anniversary in 2026, reinforcing its role as a public space for engagement with American history and democracy.
What If...?
Explore alternate histories. What if United States Capitol made different choices?