A host on the far-right US conspiracy and disinformation website InfoWars has been removed from the latest impeachment hearing by police, after interrupting House Judiciary Committee chairman Jerry Nadler with pro-Donald Trump messages.

The interruption came from a host on the fringe conservative website who led a racist call earlier this year for the lynching of Barack Obama, America's first African American president.

The host was seen being led out by Capitol Police after the interruption on Monday, shortly after the start of the hearings in which politicians are to question the counsels hired by the House Intelligence Committee to spearhead questioning during earlier impeachment hearings.

"Americans are sick of your impeachment scam! Trump is innocent!" said the protester, Owen Shroyer.

Mr Shroyer had attracted attention to himself earlier this year with a racist call to lynch Mr Obama, whom he called "treasonous" during an interview with the far-right website Breitbart. He cited a conspiracy theory that has been pushed with no evidence by far-right actors as proof of the former president's alleged misdeeds.

The far-right plot to normalise white supremacy in the US Show all 23 1 /23 The far-right plot to normalise white supremacy in the US The far-right plot to normalise white supremacy in the US Members of the ShieldWall Network, a white nationalist group, burn a swastika and cross during a party outside Atkins, Arkansas, U.S on March 9, 2019 Reuters The far-right plot to normalise white supremacy in the US Members of the ShieldWall Network hold up balloons decorated as the face of Adolf Hitler and give a white-power hand signal as they celebrate the German fascist's birthday outside Atkins, Arkansas REUTERS The far-right plot to normalise white supremacy in the US Billy Roper of the ShieldWall Network attends a party at a home outside Atkins. The group primarily operates in Arkansas and includes three other members who were recently charged with assault in connection with the beating of a gay man, according to police reports REUTERS The far-right plot to normalise white supremacy in the US Members of the ShieldWall Network march to a rally opposing legal abortion and supporting gun rights at the state capitol in Little Rock, Arkansas REUTERS The far-right plot to normalise white supremacy in the US Jeff Schoep, former chairman of the National Socialist Movement, speaks during a rally at the state capitol in Little Rock, Arkansas on November 10, 2018 Reuters The far-right plot to normalise white supremacy in the US Crosses lit by members of the Loyal White Knights of the Ku Klux Klan burn outside Yanceyville, North Carolina, U.S., November 4, 2017. The Loyal White Knights is one of the largest Klan groups in the United States, according to the Anti-Defamation League, which tracks extremist groups REUTERS The far-right plot to normalise white supremacy in the US Members of the Loyal White Knights of the Ku Klux Klan prepare for a cross-burning outside Yanceyville, North Carolina, U.S., November 4, 2017 REUTERS The far-right plot to normalise white supremacy in the US Members of the ShieldWall Network perform a Nazi salute as a swastika and cross burn during a party outside Atkins, Arkansas, March 9, 2019 REUTERS The far-right plot to normalise white supremacy in the US High chairs are seen in a building owned by The Knights Party, a white nationalist group formerly named the Knights of the Ku Klux Klan, outside Harrison, Arkansas, March 10, 2019. The organisation is opening an education center for the children of white nationalists REUTERS The far-right plot to normalise white supremacy in the US Chris Barker of the Loyal White Knights of the Ku Klux Klan addresses an audience before a cross-burning outside Yanceyville REUTERS The far-right plot to normalise white supremacy in the US A figurine of a black man being lynched inside the home of Chris Barker of the Loyal White Knights of the Ku Klux Klan in Yanceyville REUTERS The far-right plot to normalise white supremacy in the US John Carollo, a member of the ShieldWall Network, holds up a photo montage of (clockwise from top left) Oklahoma City bomber Timothy McVeigh, Adolf Hitler, founder of the American Nazi Party George Lincoln Rockwell, Charleston church shooter Dylann Roof and Hitler's deputy Rudolf Hess, while attending a party at a home outside Atkins REUTERS The far-right plot to normalise white supremacy in the US Symbols of white nationalism are displayed on the jacket of a member of the National Socialist Movement as they gather in a parking lot before attending a rally at the state capitol in Little Rock, Arkansas REUTERS The far-right plot to normalise white supremacy in the US Members of the ShieldWall Network prepare a swastika for burning to celebrate Adolf Hitler's birthday outside Atkins REUTERS The far-right plot to normalise white supremacy in the US A new member of the ShieldWall Network, Nicholas Holloway, and other members of the white nationalist group go boating to celebrate Adolf Hitler's birthday outside Russellville, Arkansas REUTERS The far-right plot to normalise white supremacy in the US Courtney Calfy, wife of Julian Calfy, helps to prepare a meal as members of the ShieldWall Network gather to celebrate Adolf Hitler's birthday outside Atkins, Arkansas REUTERS The far-right plot to normalise white supremacy in the US John Carollo, a member of the ShieldWall Network, on the phone during a celebration of Adolf Hitler's birthday outside Atkins, Arkansas REUTERS The far-right plot to normalise white supremacy in the US A plaque on top of a flagpole with the number 1488 is carried by members of the National Socialist Movement as they attend a rally at the state capitol in Little Rock, Arkansas, November 10, 2018 REUTERS The far-right plot to normalise white supremacy in the US Members of the ShieldWall Network John Carollo, Julian Calfy and Nicholas Holloway gather at a member's home before departing to disrupt a Jewish Holocaust memorial event in Russellville, Arkansas REUTERS The far-right plot to normalise white supremacy in the US Members of the ShieldWall Network burn a swastika to celebrate Adolf Hitler's birthday outside Atkins, Arkansas REUTERS The far-right plot to normalise white supremacy in the US Chris Barker of the Loyal White Knights of the Ku Klux Klan is seen inside what the group calls its church, next to his home in Yanceyville REUTERS The far-right plot to normalise white supremacy in the US Members of the ShieldWall Network go boating to celebrate Adolf Hitler's birthday outside Russellville, Arkansas REUTERS The far-right plot to normalise white supremacy in the US Members of the ShieldWall Network, a white nationalist group, prepare to burn a swastika and cross during a party at a home outside Atkins, Arkansas REUTERS

"Folks, Obama was emailing Hillary Clinton on her illegal server under a secret name, that came out in emails. And he claimed he didn't know she had it. Barack Obama is a treasonous ... he belongs in jail. He belongs in Guantanamo Bay. I mean look, I'm not saying this should happen but Barack Obama, you know, find the tallest tree and a rope."

Mr Shroyer's disruption was live streamed by the conspiracy theorist on Twitter, and posted onto his own handle.

Previously, he has pushed conspiracy theories like Pizzagate, a debunked theory that went viral during the 2016 election season claiming that falsely claimed that top Democratic officials were running a child sex ring in the basement of Comet Ping Pong, a pizza parlour in Washington.

The building does not have a basement, but the conspiracy theory resulted in one individual driving to the restaurant with a gun, planning to liberate the victims that did not exist.

But, Mr Shroyer has also peddled further conspiracy theories, some of them even more bizarre than a concentrated effort by America's top Democrats to hide a child sex trafficking ring in a pizza shop.