Siege of the White House (2097)

On March 3, 2097, a faction of the Fascist Militia Group "Third Position" attempted to overthrow the Government of the United States. They had been active and empowered the days before by President William Rowell who was an undercover agent for the group. On February 22, Vice President Roman Andaman was leaving the White House when a lone gunman shot him in the lung, he was rushed to to safety where he was put in intensive care.
Furious at the attack against his Vice President, Rowell placed all of D.C. under a State of Emergency. When he did this, instead of calling on the National Guard to defend the city, he relied on his personal militia; this action sparked further riots in the city. By February 28, a counter Militia known as "Liberty Front" had arrived in D.C. to ensure Third Position did not attempt to cause further harm to the city or civilians. The next several days would see tensions begin to calm down when until a memo was leaked that Rowell had instructed James Rockwell (head of Third Position) and other Third Position leadership to "begin preparations to take Congress". This caused Liberty Front to set up camp outside the White House grounds. Secret Service had been ordered to evict them but no such attempt was taken until March 2, 2097. 
On March 2, Liberty Front demanded that Rowell resign; the President would refuse this demand. Later that day, Congress met in an emergency session to begin the process of impeaching President William Rowell for treason, sedition and conspiracy. Rowell ordered Cannon to move his forces to the Capital to psychically stop Congress from meeting, Liberty Front met them at the Capital and fighting broke out again. Defense Secretary Andrew Mathews attempted to mobilize the National Guard, but Rowell reversed the order and fired him from his Cabinet. Fighting raged throughout the night, which largely stalled at a stalemate. By the early morning of March 3, the death tole had reached 245.
In the evening of March 2, a plan to storm the White House to force Rowell to bring an end to the chaos was created. Designated as the White House Strategic Offensive Operation (WHSOO), this operation had the goal of securing the White House and capturing President Rowell. A second plan called "Operation Fallen Chicken" had the goal of storming the Hospital Vice President Andaman was staying at in order to force his resignation to ensure the line of succession did not give him the Presidency. The Operation was a success as at 12:13 AM, protesters stormed the hospital where the Vice President was recovering and forced him to sign a letter of resignation at gunpoint.
Seven minutes later, at 12:20 AM, Liberty Front began its advance on the White House. To the shock of many, Secret Service did not use lethal fire on the Militia and instead employed non-lethal means to halt the advance, the Militia responded in kind. By 12:47 AM, Liberty Front had successfully broken secret service defenses and were in the White House. Stationed in the Residence at the time, Rowell was informed at 12:50 AM that the White House was breached and it was no longer safe for him to remain on the grounds. The route to the White House Emergency Operations Center had been compromised; thus, the decision was made to evacuate the President via Marine One. 
Rowell successfully boarded Marine One with the first lady just as Liberty Front has reached the South Lawn. Due to how close the Front was, Secret Service had not had time to enter with the President. Rowell called General Samuel Broadside to order and airstrike against the White House; upon hearing what the President planned to do, however, Marine One Pilot Joshua Chamberlin promptly brought the aircraft back to the ground and ordered the President out. Rowell reluctantly exited the helicopter to be met by Christopher Adrian. The Secretary of State was brought to the White House lawn so the President could deliver him his resignation. At gunpoint, Rowell signed a letter simply reading "I resign as President". and handed it to the Secretary.
At around 1:22 AM, former President Quinton Kaminski called the National Guard and himself gave the order to mobilize despite having no legal authority to make that call. The General did, however, obey the Former President's orders and at 1:40 AM, the National Guard had begun to pour into the area to retake the city. House of Representatives Speaker Theodore Riddley was escorted from the Capital Building under heavy protection by Liberty Front to the White House to be sworn in.
President Rowell would plea for freedom; upon newly inaugurated President Riddley's arrival, however, he would be ordered arrested.