PHOTO: Brill for Congress
Now playing
01:13
Siblings of Rep. Gosar endorse his opponent
senator bill nelson 11132018
PHOTO: CNN
senator bill nelson 11132018
Now playing
02:03
Nelson: Scott should recuse himself
Rep. Marsha Blackburn, R-Tenn., speaks to supporters after she was declared the winner over former Gov. Phil Bredesen in their race for the U.S. Senate Tuesday, Nov. 6, 2018, in Franklin, Tenn. (AP Photo/Mark Humphrey)
PHOTO: Mark Humphrey/AP
Rep. Marsha Blackburn, R-Tenn., speaks to supporters after she was declared the winner over former Gov. Phil Bredesen in their race for the U.S. Senate Tuesday, Nov. 6, 2018, in Franklin, Tenn. (AP Photo/Mark Humphrey)
Now playing
01:26
Meet the Republicans who held onto the Senate (2018)
Democratic congressional candidate Ilhan Omar is greeted by her husband
PHOTO: Eric Miller/Reuters
Democratic congressional candidate Ilhan Omar is greeted by her husband's mother after appearing at her midterm election night party in Minneapolis, Minnesota, U.S. November 6, 2018. REUTERS/Eric Miller
Now playing
01:33
Minorities, LGBT make history in 2018 midterms
PHOTO: WJLA
Now playing
02:01
Hear from the Democrats who took back the House
PHOTO: CNN
Now playing
01:50
Abrams vows to remain in gubernatorial race
PHOTO: Spectrum News NY1
Now playing
02:05
Ocasio-Cortez: This is a movement for justice
PHOTO: KXAN
Now playing
02:07
O'Rourke congratulates Cruz on his victory
PHOTO: CNN
Now playing
01:57
Tapper: This is not a blue wave
PHOTO: CNN
Now playing
02:11
Van Jones: It's a rainbow wave
LAS VEGAS, NV - OCTOBER 20:  U.S. Rep. and U.S. Senate candidate Jacky Rosen (D-NV) speaks during a rally at the Culinary Workers Union Hall Local 226 featuring former U.S. Vice President Joe Biden on October 20, 2018 in Las Vegas, Nevada. Early voting for the midterm elections in Nevada begins today. (Photo by Ethan Miller/Getty Images)
PHOTO: Ethan Miller/Getty Images
LAS VEGAS, NV - OCTOBER 20: U.S. Rep. and U.S. Senate candidate Jacky Rosen (D-NV) speaks during a rally at the Culinary Workers Union Hall Local 226 featuring former U.S. Vice President Joe Biden on October 20, 2018 in Las Vegas, Nevada. Early voting for the midterm elections in Nevada begins today. (Photo by Ethan Miller/Getty Images)
Now playing
01:45
CNN projects Jacky Rosen elected to US Senate
Additional Embargo:   Additional Source(s):    Date Shot: 11/6/2018   Shipping/Billing Info:     Description: Projects: None  Cost Center: Atlanta National Desk / 20100101   Created By: DHackett  On: 1541544461  --------------------------------------------------------------------------------
PHOTO: WSB;
Additional Embargo: Additional Source(s): Date Shot: 11/6/2018 Shipping/Billing Info: Description: Projects: None Cost Center: Atlanta National Desk / 20100101 Created By: DHackett On: 1541544461 --------------------------------------------------------------------------------
Now playing
00:59
Brian Kemp: Confident victory is near
2018 Elections Primary Clean path
PHOTO: CNN
2018 Elections Primary Clean path
Now playing
01:49
Pelosi: Tomorrow will be a new day in America
PHOTO: CNN
Now playing
01:36
The Democrats who might lead the House
PHOTO: CNN
Now playing
01:54
DeSantis thanks Trump in victory speech
PHOTO: KXAN
Now playing
01:44
Cruz: This election was a battle of ideas
(CNN) —  

Six siblings of Republican Rep. Paul Gosar delivered a stark message in a new television advertisement: Vote for their brother’s opponent.

The Democrat challenging Gosar in Arizona’s 4th District unveiled a new ad Friday that features Grace, David, Jennifer, Tim, Joan and Gaston lambasting Gosar over Social Security, health care, water policy and more.

“Paul’s absolutely not working for his district,” David says.

Then comes the big reveal: Gosar is their brother – but they endorse David Brill, the Democrat running against him.

Paul Gosar is the oldest of 10 children.

In response to the ad, Gosar told CNN in a statement Saturday that the siblings featured in the ad are “liberal Democrats who hate President Trump” and slammed Bill for engaging “in this shameful attack.”

“These disgruntled Hillary suppporters (sic) are related by blood to me but like leftists everywhere, they put political ideology before family. Lenin, Mao and Kim Jung (sic) Un would be proud,” Gosar said. “It is unfortunate that my opponent chose to use family political differences to launch attacks on me rather than focusing on the issues.”

He added, “You can’t pick your family. We all have crazy aunts and relatives etc and my family is no different. I hope they find peace in their hearts and let go all the hate. To the six angry Democrat Gosars – see you at Mom and Dad’s house!”

Gosar has a long history of controversial remarks and actions. He promoted the conspiracy theory that the white supremacists’ rally in Charlottesville, Virginia, last year was a plot by the left financed by Democratic megadonor George Soros, who Gosar said “turned in his own people to the Nazis.”

In July, Gosar spoke in London at a rally for an anti-Muslim activist. He is also one of the staunchest opponents of legal rights for undocumented “Dreamers” in Congress.

His district, made up of mostly rural western Arizona, is generally not considered competitive in November: Gosar won by more than 40 percentage points in 2016. President Donald Trump won there by 39 points in 2016, and Mitt Romney carried the district by 36 points in 2012.

But the sharply personal ad is certain to generate attention for Brill’s campaign.

The Phoenix New Times reported that the ad and others were unveiled at a fundraiser in Phoenix on Thursday night – and that in another spot, which is not public yet, Grace Goser says that “it would be difficult to see my brother as anything but a racist.”

It’s just the latest ad to feature a politician’s family member this year.

In Wisconsin, Democrat Randy Bryce’s brother is featured in an ad backing Republican Bryan Steil in the 1st District race for retiring House Speaker Paul Ryan’s seat.

And the parents of Republican Kevin Nicholson, who was a Senate candidate in Wisconsin before he lost the primary to state Sen. Leah Vukmir, gave the maximum contributions allowable under federal campaign finance law to the Democratic incumbent whom Nicholson hoped to challenge, Sen. Tammy Baldwin.

CNN’s Tia Brueggeman and Veronica Stracqualursi contributed to this report.