Popular host Oprah Winfrey assembled a group of voters to examine the US' political and cultural divide on the show "60 Minutes" for a channel.

Winfrey held a roundtable session with 14 voters from West Michigan, evenly split between President Donald Trump supporters and detractors. She pressed the group on Trump's track record as President, whether his tweets are "modern presidential", the need for limitations on free speech, and their perceptions of Trump vs. Hillary Clinton voters, reports variety.com.

The group also debated the question of whether Trump's response to the white supremacist violence last month in Charlottesville, Virginia, was appropriate or whether he wrongly sought to draw a moral equivalency between far left protestors and the hate groups that organised the rally.

Participants included a farmer, a former General Motors factory worker, a drug counsellor, a speech therapist and a sales manager.

At one point, a few participants agreed tensions are so fraught that there are genuine fears that civil war could break out.