"These disgruntled Hillary [sic] suppporters are related by blood to me but like leftists everywhere, they put political ideology before family", he wrote Saturday afternoon.
Congressman Paul Gosar has now responded to his six siblings who have come out publicly to endorse his opponent.
Lawyer David adds: "He's not listening to you, he doesn't have your interests at heart". "To the six angry Democrat Gosars-see you at Mom and Dad's house!" he continued.
The television ad from Democrat David Brill combines video interviews with Gosar-family siblings who ask voters to usher Paul Gosar out of office because he has broken with the family's values.
"Paul Gosar the congressman isn't doing anything to help rural America", says physician Grace Gosar.
Reached at her home in Wyoming, Bernadette Gosar, the siblings' 85-year-old mother, said she was unaware of the videos until she was contacted by The New York Times.
"I share the same philosophy and policies that Paul does", she told the New York Times. What's also fairly normal in politics is for family members to join pro-candidate ads to give them a sense of warmth and love. He is one of 10 children and three of his other siblings seemed to have not participated.
Tiger Woods' title drought ends at last, claims first win since 2013
It was victory that meant everything to Woods, who has been sidelined by a number of back surgeries over the last few years. It's his 80th PGA Tour win overall, which moves him to within two of Sam Snead's all-time record of 82.
"To speak up against my brother, it brings sadness to me", says Joan Gosar.
"Paul's absolutely not working for his district", said attorney David Gosar in one of the videos posted on Brill's campaign website. Gosar has also spread a conspiracy theory that the "Unite the Right" rally in Charlottesville, where one woman was killed by a self-identified white supremacist, was actually plotted by left-wing organizers to damage Trump.
"I think my brother has traded a lot of the values we had at our kitchen table", says his sister Joan.
A campaign staffer for Brill spied his tweets, which led to a conversation between David Gosar and the campaign, and then a trip to Wyoming to film the ads with the Gosar siblings earlier this month.
"We gotta stand up for our good name", said brother David Gosar in the advertisement.
What if, like Republican Arizona Congressman Paul Gosar, your siblings positively despised you?
But the sharply personal ad is certain to generate attention for Brill's campaign.
Paul, an outspoken Donald Trump fan, won his district with 71 percent of the vote in 2016. The siblings said they were upset by Gosar's views on a range of issues but especially on healthcare and medicare.