George Floyd protesters embrace 'taking a knee' for race awareness

Demonstrators kneeling in prayer along 16th Street near Lafayette Park and the White House on June 3 in Washington, DC. (Getty Images/Drew Angerer)

Sacramento Mayor Darrell Steinberg, foreground left, and Sacramento Police Chief Daniel Hahn, foreground right, kneeling with others for a moment of silence at a rally in honor of George Floyd on June 3. (AP Photo/Rich Pedroncelli)

Protesters taking a knee in Orlando, Fla., June 3. (Joe Burbank/Orlando Sentinel via AP)

Demonstrators pausing as they protest the death of George Floyd on June 3 in Washington. 

Police officers kneeling during the "Taking a Knee for Justice and Prayer" service on June 3 in Fairfield, Calif.

Demonstrators gathering to protest the death of George Floyd on June 3 near the White House. (AP Photo/Manuel Balce Ceneta)

Protesters kneeling in Times Square in New York City on June 2. (AP Photo/Seth Wenig)

People kneeling in front of a line of California Highway Patrol officers in Redwood City, Calif., on June 2.

Demonstrators chanting June 2 at Rittenhouse Square in Philadelphia. (AP Photo/Matt Rourke)

Cleveland police officers and protesters taking a knee together during a rally June 2 in Cleveland. (AP Photo/Tony Dejak)

Health workers taking a knee in solidarity with protesters June 2 in New York City. (AP Photo/Eduardo Munoz Alvarez)

Protesters kneeling in front of a police officer during a demonstration June 1 in Salt Lake City.  (AP Photo/Rick Bowmer)

Demonstrators including Abimbola Oretadu, second from left, and David Walker kneeling with a Connecticut state trooper in Hartford. (Mark Mirko/Hartford Courant via AP)

People kneeling in front of the Hall of Justice in San Francisco on May 31.  (AP Photo/Jeff Chiu)

Demonstrators kneeling in a moment of silence outside the Long Beach Police Department on May 31. (AP Photo/Ashley Landis)

 A police officer kneeling during a protest against police brutality in Sunrise, Fla., on June 2. (AFP via Getty Images/Eva Marie Uzcategui)

Protesters kneeling and raising their arms in Redwood City, Calif., on June 2. (Digital First Media/The Mercury News via Getty Images/Nhat V. Meyer)

Protesters kneeling in the middle of the street to block traffic as they protest the deaths of George Floyd and Breonna Taylor on May 29 in Louisville, Ky. (AP Photo/Darron Cummings)

Demonstrators kneeling in front of the police in Los Angeles.  (AP Photo/Mark J. Terrill)

Los Angeles Police Department officers kneeling during a rally led by Baptist Ministers to City Hall on June 2.  ( AFP via Getty Images/Frederic J. Brown)

Protesters kneeling with a fireman on June 2 in New York City.  ( Corbis via Getty Images/Andrew Lichtenstein)

Protestors taking a knee during a demonstration near the White House on June 2.  (Getty Images/Samuel Corum)

The images of a white police officer kneeling on the neck of George Floyd have sparked advocates to draw a direct visual parallel to Colin Kaepernick's kneeling protest against police brutality. (AP Photos/Getty Images)