US President Joe Biden has expressed concern about the possible implications of the trial of former Minneapolis cop Derek Chauvin accused of murdering African-American George Floyd.

This came during a private meeting held by Biden last week with members of Congress from the African American bloc of representatives, according to what CNN reported, citing sources it described as well-informed.

The network said that the White House is preparing for the possibility that next week will be full of volatile events with the expectation of a final verdict in the Chauvin trial, in addition to the funeral of another African American next Thursday, who was killed by police fire in Minnesota as well.

One official said that Biden does not want to face the protests with a strong security response, as happened during the era of former President Donald Trump, nor to appear as one shying away from addressing violence or unrest targeting law enforcement authorities.

The official indicated that the president believes he must directly acknowledge the existence of systemic racism pervading criminal justice in the United States.

The White House is closely following events in Minneapolis this week, and is preparing for a variety of scenarios in one of the most notable cases of police brutality in three decades.

In a related context, Democratic Representative Karen Bass from California, on Sunday, spoke on the "State of the Union" program on CNN (CNN) about the possibility of unrest throughout the country, and said she was very concerned.

"I don't think anyone in Minneapolis, or even anyone in the United States or a large part of the world, will understand any judgment other than a conviction," she added.

For his part, the National Guard in Washington, DC, confirmed that he had received a request from the local government to provide security support in anticipation of demonstrations, but he was awaiting the approval of the Minister of the Army on the request.

Floyd (46 years) - who died after crouching with his knee on his neck in the street - became a symbol of the national movement against racial injustice and police violence, as protests over his death swept the United States last summer in the midst of the Corona pandemic.