Elizabeth Brown, daughter of U.S. Sen. Sherrod Brown (D-Ohio), will replace Michelle Mills in the race for a seat on Columbus City Council in November.

Elizabeth Brown, daughter of U.S. Sen. Sherrod Brown (D-Ohio), will replace Michelle Mills in the race for a seat on Columbus City Council in November.

Incumbent Mills announced Aug. 10 she would resign from council effective Sept. 4 and halted her re-election campaign.

Although she did not give a reason, Mills, 45, was among four members of council who took a trip to the Big Ten Championship football game with lobbyist John Raphael, who is linked to a bribery investigation involving Redflex Traffic Systems, the city's former photo red-light camera provider, according to The Columbus Dispatch.

Council President Andrew Ginther and members Shannon Hardin and Eileen Y. Paley also attended the trip, The Dispatch reported.

Ben Piscitelli, spokesman for the Franklin County Board of Elections, said Mills' nominating committee -- Franklin County Commissioner Marilyn Brown, Kevin Tyler, Jennifer House, Scott North and county treasurer Ed Leonard -- had until 4 p.m. Monday, Aug. 17, to name a replacement candidate.

Brown, 31, a Democrat like her father, lives in the Short North area of town.

She has served as the manager of Downtown Economic Development since February 2014. Brown is on the board of YWCA Columbus and the Center for Balanced Living, a mental-health treatment center that specializes in eating disorders. She's also actively engaged in the Franklinton Development Association.

In a prepared statement issued Aug. 10, Mills thanked her colleagues on Columbus City Council "for all of their support and encouragement during my tenure on council.

"I remain committed to Columbus and will continue work to strengthen families and neighborhoods through my service at St. Stephen's Community House," she added. "I love this city, its people and how we work together to improve our community."

Ginther also issued a statement, praising Mills as "a tireless advocate for Columbus residents,

"Whether working at City Hall or in the community, she has always put our families, especially children, first," he said.

"While a difficult decision, I understand that professionally and personally, this is what is best for Michelle, and I respect her decision. I thank her for her work on council and for her ongoing service to the community."

Mills did not disclose her trip to the Big Ten Championship game on her financial disclosure form with the Ohio Ethics Commission.

She paid $250 for the trip, an agreed-upon price according to Raphael, in early July, seven months after the game and shortly after it became known Raphael was part of a federal investigation, according to The Dispatch.

Mills said in an Aug. 7 email she "didn't disclose the trip because I had every intention of paying for it once I would have received an invoice and there is no requirement to disclose if you pay for it.

"After issues started surfacing I realized I had not received an invoice and I then paid for the trip," Mills wrote in her email.

Columbus Dispatch reporter Lucas Sullivan contributed to this story.