Republican Rep. Sean Duffy, who represents northern Wisconsin in Congress, announced Monday that he is resigning next month to spend more time with his family.

Duffy, 47, posted on Facebook that he recently learned that his ninth child, who is due in October, has a heart condition and “will need even more love, time, and attention due to complications.”

Duffy, who was on the cast of MTV’s “The Real World: Boston” in 1997, plans to resign on Sept. 23. Democratic Gov. Tony Evers will have to call a special election to fill the vacancy.

Wisconsin’s 7th Congressional District is the state’s largest, geographically, covering all or parts of 20 northern and northwestern counties.

Duffy’s district has grown more conservative since he took office in 2011. In 2012, Republican Mitt Romney carried it with 51% of the vote, compared with 48% that went to then-President Barack Obama. In 2016, Trump won it by 57% to 37% over Democrat Hillary Clinton.

Duffy has been widely mentioned as a possible candidate for U.S. Senate or governor in 2022.

In his resignation announcement, he said being away from his family for four days a week to serve in Congress is “challenging” and “I have always been open to signs from God when it comes to balancing my desire to serve both my family and my country.”

“I have decided that this is the right time for me to take a break from public service in order to be the support my wife, baby and family need right now,” Duffy said. “It is not an easy decision — because I truly love being your Congressman — but it is the right decision for my family, which is my first love and responsibility.”

Duffy replaced 15-term Democratic Rep. Dave Obey, who announced his retirement 10 months after Duffy entered his first race for the seat. Duffy had been a district attorney for eight years before being elected to Congress.

Duffy met his future wife, Rachel Campos-Duffy, on the set of MTV’s “Road Rules: All Stars” in 1998. Together, they have eight children and Duffy announced in May that she was pregnant with their ninth child.

State Sen. Tom Tiffany, a Republican who lives in Duffy’s district, was one of the first to release a statement after the retirement was announced, thanking Duffy for his service and wishing him luck. Tiffany did not immediately return a message seeking comment on whether he plans to run for the seat.

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