The violent clashes between Donald Trump supporters and protests were documented by The Washington Post in a video showing members of both sides fighting each other.
Video filmed by NBC4 reporters shows some clashes between the two sides, in which a Donald Trump supporter collapsed after he collided with a group of people protesting the president.
A group of people also gathered near freedom Plaza and shouted "U-S-A", according to footage from WUSA 9 reporter Kolbie Satterfield. A report from the media noted that there were lightning and flares in the area.
Amid the chaos, Washington DC police made 20 arrests on November 14, injuring two officers.
On the evening of November 14, President Donald Trump accused Washington DC Mayor Muriel Bowser (Democratic Party) of failing to fulfill his duties.
Lefth extremist groups returned at night, after 99% of the crowd had left, to assault the elderly. The police arrived, but it was too late. The Mayor did not complete his work!" - Mr. Donald Trump wrote on Twitter.
The violence broke out after a day of mostly dovish protests in the capital Washington. Most of the protests carried signs or shirts with words accusing of widespread election fraud, negatively affecting Donald Trump's results.
Speakers at the event, such as Infowars host Alex Jones, encouraged the crowd not to give up hope in the election results.
It will take a few weeks, maybe a few months, but we will stick with this president, Donald J. Trump, Jones said.
The event comes a week after Joe Biden was predicted by news agencies to be President-elect. However, Donald Trump has not accepted the results and has launched a legal battle in several states on fraud charges and claiming that Democrats have tried to steal the election.