Republican Paul Gosar's own siblings star in Democrat campaign ad

"It would be hard to see my brother as anything but a racist", Mr Gosar's sister Grace tells voters in another upcoming advert, according to The Phoenix New Times.

Next is a statement from "David, lawyer", saying "Paul's absolutely not working for his district".

On Saturday, Paul Gosar struck back at his siblings, and said he hoped they "find peace in their hearts and let go all the hate".

His House seat is not hotly contested; he won by 40 points in the last election.

But that hasn't stopped six of his nine brothers and sisters from featuring in a series of videos released Friday for the Brill campaign, drawing surprised and bemused reactions as the family feud plays out across national media.

The family is speaking out in a new TV ad from Democrat David Brill.

The siblings previously condemned the congressman's false accusation in 2017 that wealthy Democratic donor George Soros was a Nazi collaborator in World War II.

Gosar is now calling himself "Mom's favorite" because, after six of his brothers and sisters insulted his policies and endorsed his opponent, his mother came forward to say that she will definitely vote for him.

"These disgruntled Hillary (Clinton) supporters are related by blood to me but like leftists everywhere, they put political ideology before family", he wrote on Twitter. Earlier this year, he called for authorities to check the immigration status of those attending the State of the Union address, and arresting and deporting "any illegal aliens attempting to go through security". "Lenin, Mao and Kim Jung (sic) Un would be proud", Gosar said. Then Paul Gosar, the eldest sibling, started gearing up to run for Congress in 2010 and said that he believed, incorrectly, that President Obama was born outside the country.

"I think my brother has traded a lot of the values we had at our kitchen table", said another sister, Joan.

The Fourth District is a Republican stronghold that includes the cities of northwest Arizona and areas surrounding metro Phoenix. "He just doesn't appear to be well", David Gosar tells the New Times, adding to the Washington Post: "There isn't a kooky, crazy, nutty thing that he isn't a part of". David Gosar said that their parents, who are in their 80s, are Republicans and support his brother.

Gosar is a close ally of the Trump administration who has cheered on the crusade against top Justice Department and Federal Bureau of Investigation officials. The Republican is considered likely to keep the seat he has held since 2011. In the video, she and five other siblings urged voters to cast their ballots against their brother in November 2018.