Dr. Winnie Heartstrong, a Republican candidate for Missouri's 1st Congressional District, asserted on Twitter that George Floyd's death may have been a "false flag" event.

Floyd was killed while in the custody of Minneapolis police — an incident captured on video.

Heartstrong tweeted: "The use of deepfake technology has serious implications for American civic and political life. We call on President Trump and AG Barr to launch an investigation into the death of Mr. Floyd."