Storming of the United States Capitol

Thirty-five House Republicans joined Democrats in voting to create a bipartisan commission to investigate the Jan. 6 attack on the Capitol, risking the wrath of former President Donald Trump and flouting GOP leaders who condemned the proposal as unfairly partisan and unneeded.

An attack at the US Capitol complex in Washington DC has left one police officer dead and another in hospital with injuries.

A car crashed into a security barrier before the driver lunged towards the officers with a knife, police said.

The officers opened fire and the suspect was shot dead.

A Capitol Police officer has died after a man rammed a car into two officers at a barricade outside the U.S. Capitol and then emerged wielding a knife. It was the second line-of-duty death this year for a department still struggling to heal from the Jan. 6 insurrection.

Security has been tightened at the US Capitol in Washington in response to "a possible plot to breach" the building.

The move was prompted by intelligence that a militia group planned the attack for 4 March - the day conspiracy theorist group QAnon believes Donald Trump will return for a second term.

Capitol Police say they have uncovered intelligence of a "possible plot" by a militia group to breach the U.S. Capitol on March 4, nearly two months after a mob of supporters of then-President Donald Trump stormed the iconic building to try to stop Congress from certifying now-President Joe Biden's victory.

Missed intelligence was to blame for the outmanned Capitol defenders' failure to anticipate the violent mob that invaded the iconic building and halted certification of the presidential election on Jan. 6, the officials who were in charge of security that day said in their first public testimony on the insurrection.

Donald Trump was acquitted on Feb. 13 of inciting the horrific attack on the U.S. Capitol, concluding a historic impeachment trial that spared him the first-ever conviction of a current or former U.S. president but exposed the fragility of America's democratic traditions and left a divided nation to come to terms with the violence sparked by his defeated presidency.

House Democrats prosecuting Donald Trump's impeachment trial for inciting the deadly siege of the Capitol played chilling security video on Feb. 10 showing members of the pro-Trump mob searching the building for his vice president, chanting: "Hang Mike Pence!"

Donald Trump's historic second impeachment trial will launch this week with a debate and a vote on whether it's even constitutional to prosecute the former president over the deadly Capitol siege now that he's no longer in office.

The US House of Representatives presented a single article of impeachment to the Senate on Monday accusing Donald Trump of inciting the storming of the Capitol, setting in motion the first-ever impeachment trial of a former president.