Jon Ossoff was 16 years outdated when he wrote a letter to John Lewis, the Georgia congressman and civil rights pioneer, that led to a spot as a volunteer in Mr. Lewis’s workplace.

When Mr. Ossoff was 19 and a rising sophomore at Georgetown, he went to work for Hank Johnson as the first speechwriter and press aide for Mr. Johnson’s 2006 congressional marketing campaign.

And Mr. Ossoff was 26 when, with none journalism expertise aside from an internship, he was made chief government of a small documentary movie firm based mostly in England.

Mr. Ossoff has all the time been adept at making his personal breaks. He has persistently outperformed his skilled résumé, impressing lawmakers a few years his senior together with his mind and drive. And he has capitalized on his personal well-off upbringing and a sequence of well-timed introductions and private endorsements to rise via Democratic politics in Georgia.

Now 33, Mr. Ossoff is pursuing his most formidable aim but: to seize a seat in the USA Senate in opposition to an incumbent Republican, David Perdue, in a historically conservative state. If profitable, he would turn out to be the youngest senator in 40 years.

Mr. Ossoff first emerged on the nationwide stage in 2017, when his bid for a Home seat in a particular election offered Democrats the primary alternative to specific resistance to President Trump. Although he misplaced an in depth race in a well-off district in suburban Atlanta, the power surrounding his candidacy enabled him to shatter fund-raising data and construct the political community that has put him inside attain of the Senate.

That power has hardly abated. Federal filings made public last week confirmed Mr. Ossoff to be the best-funded Senate candidate in historical past after pulling in $106.7 million from mid-October to mid-December — virtually $40 million greater than Mr. Perdue’s tally. The gorgeous totals mirror the stakes: If Mr. Ossoff and the Rev. Raphael Warnock win their runoff races on Jan. 5, Democrats will acquire management of the Senate.

Nonetheless, Mr. Ossoff has little report to run on, or in opposition to. Aside from campaigning for positions in Congress, he has spent the years since leaving Mr. Johnson’s workplace operating Insight TWI, an investigative documentary firm of eight workers members that has headquarters in London — doing so principally from Atlanta.

He has mounted a marketing campaign based mostly much less on his personal expertise and accomplishments and extra on the concept that his election will assist foster a political change in Georgia — the type voters signaled they wished once they backed Joseph R. Biden Jr. within the presidential election. He has additionally persistently cited Mr. Perdue’s monetary dealings to label him “a criminal” who cashed in on the pandemic, an allegation Mr. Perdue denies.

At marketing campaign occasions, Mr. Perdue, 71, typically fails to even point out Mr. Ossoff as an opponent. As a substitute, he and Kelly Loeffler, the opposite Republican Senate candidate, direct most of their assaults at Mr. Warnock, whom they view as a extra substantive goal. Mr. Perdue skipped a debate in opposition to Mr. Ossoff early this month, leaving the Democrat onstage by himself making his pitch to voters, however he has unleashed an onslaught of unfavourable adverts in opposition to Mr. Ossoff, portraying him as a hostage of the novel left.

None of this has dented Mr. Ossoff’s confidence. As he heads into the ultimate days of the race, he has emphasised his connections to Mr. Lewis. And much from apologizing for his youth, he has forged himself because the heir of the legacy of younger individuals who have taken management roles in progressive political organizations within the South.

“John Lewis was 23, 24 years outdated when he was main the Pupil Nonviolent Coordinating Committee,” Mr. Ossoff mentioned throughout an interview final week. “I used to be so impressed by the truth that younger individuals in that motion had made a distinction. And I don’t suppose that younger individuals ought to merely wait their flip however ought to have interaction absolutely within the lifetime of our communities, and our nation, and our world, and attempt to make a distinction.”

When Mr. Ossoff started his first marketing campaign for Congress in 2017, he initially ran his campaign headquarters out of the basement of his dad and mom’ Atlanta dwelling. When he was in Washington, he stayed at a Capitol Hill townhouse owned by his father.

On the time, Mr. Ossoff described himself as a former “senior nationwide safety staffer,” which was one thing of an embellishment contemplating that he had been a midlevel committee workers member for Mr. Johnson.

The Republican case in opposition to him boiled right down to his not dwelling within the district he sought to symbolize and an assertion that he can be a pawn of Nancy Pelosi, then the Home minority chief.

“Aside from being born to wealthy dad and mom, Jon Ossoff has by no means completed a single factor in his life,” mentioned Corry Bliss, who ran a Republican tremendous PAC that spent tens of millions attacking Mr. Ossoff within the 2017 race.

However Mr. Ossoff obtained a vital endorsement from Mr. Lewis, and he proved to be an adept fund-raiser who shortly constructed connections with key constituencies. Progressives rallied to him as a method to specific their outrage on the Trump administration. Within the runoff, Mr. Ossoff received 48 p.c of the vote, dropping to Karen Handel.

Within the 2020 Senate race, Mr. Ossoff is operating as a mainstream Democrat, expressing sympathy for however not aligning himself with the celebration’s most liberal figures. He has stayed on message, hammering Mr. Perdue over his funds, and maybe extra necessary, he has not made any main errors on the marketing campaign path or in interviews.

There was very little reliable public polling of the two Georgia Senate runoff elections, however few doubt that Mr. Ossoff is dealing with an uphill climb. Georgia has not despatched a Democrat to the Senate since 2000 and hasn’t elected any Democrat to statewide workplace since 2006. And Republicans have historically had a bonus in Georgia runoffs as a result of the Democratic voters consists of individuals who vote extra occasionally.

Within the final Georgia Senate runoff, three weeks after the November 2008 election, voter turnout sank to 2.1 million from 3.7 million.

Georgia Democrats say a lot of that calculus has modified in 2020, as Stacey Abrams, who narrowly misplaced the 2018 race for governor, has constructed a everlasting progressive marketing campaign infrastructure within the state. Already, greater than two million Georgians have voted within the 2020 Senate runoffs.

“There isn’t a extra standard knowledge, interval,” mentioned Jason Carter, a grandson of former President Jimmy Carter who was Georgia Democrats’ candidate for governor in 2014. “This election is totally different, this second in historical past is totally different, and no matter anyone thinks they know, they don’t.”

The son of a publishing government and a administration marketing consultant, Mr. Ossoff attended the celebrated Paideia Faculty in Atlanta. In 2003, he learn Mr. Lewis’s biography and talked his method right into a volunteer place within the congressman’s workplace the subsequent summer season.

Michaeleen Crowell, who labored as Mr. Lewis’s legislative director and overlapped with Mr. Ossoff, mentioned the congressman had obtained a whole lot of letters from formidable younger individuals and {that a} parade of interns had come via his workplace. Mr. Ossoff, she mentioned, made a particular reference to the civil rights chief.

“You remind me of one other time in my very own life,” Mr. Lewis mentioned to Mr. Ossoff in an Ossoff campaign video posted to Facebook in April, earlier than Mr. Lewis’s demise in July. “Once I was 17 years outdated rising up in rural Alabama, I wrote a letter to Dr. King, and he wrote me again and despatched me a round-trip Greyhound bus ticket and invited me to come back to Montgomery and meet with him. And it modified my life.”

Within the spring of 2006, Ms. Crowell helped prepare Mr. Ossoff’s switch to work for the marketing campaign of Hank Johnson, who was operating a major marketing campaign in opposition to Consultant Cynthia McKinney.

“He got here to me asking if I might join him,” she mentioned of Mr. Ossoff. “I knew the parents who had been operating Hank’s marketing campaign. So I mentioned: ‘I do know this younger child. He’s a go-getter.’”

Mr. Ossoff had simply completed his freshman 12 months at Georgetown College and had by no means labored on a marketing campaign earlier than. However in an preliminary three-hour assembly, he pitched Mr. Johnson, a neighborhood politician with a small regulation workplace, on utilizing the web to speak with Democratic major voters in addition to donors, reporters and bloggers elsewhere.

“He wished to make use of blogs and this new factor that I’d by no means heard of, Fb, and so I gave him license to try this,” Mr. Johnson mentioned. “It instantly put my marketing campaign on the map. It received my marketing campaign nationwide consideration.”

Mr. Ossoff shortly turned considered one of Mr. Johnson’s most trusted aides. Mr. Johnson dispatched him to speak with Daraka Satcher, who would go on to turn out to be the congressman’s first chief of workers.

The 2 met at Bullfeathers, a venerable watering gap steps from the Capitol. Mr. Satcher mentioned he had seen “this child standing exterior” who smiled and opened the door for him.

“I used to be offended, as a result of he was clearly this child, and I used to be like, ‘Do they actually ship a child to vet me out?’” recalled Mr. Satcher, who then was in his early 30s.

Nonetheless, they sat down at a desk for about an hour and a half and talked. “I’ll let you know, by the top of that lunch I used to be so impressed with him and his data about coverage and politics and his perception that it made me need to assist the marketing campaign much more,” he recounted. “I went from being offended to overly impressed,” Mr. Satcher mentioned.

Mr. Johnson went on to beat Ms. McKinney and gained accolades for his tech-savvy marketing campaign. Nationwide Journal wrote that Mr. Johnson’s marketing campaign had “probably the most distinctive weblog technique” and quoted Mr. Ossoff saying that blogs had been “efficient in reaching out to the individuals who make the information, the individuals who decide what’s sizzling and what’s not.”

When Mr. Johnson went to Washington the subsequent January, Mr. Ossoff break up time between his Georgetown research and a job as a legislative correspondent in Mr. Johnson’s Capitol workplace, a extremely uncommon association for an undergraduate.

Like many different younger congressional staffers, most of Mr. Ossoff’s time was spent writing information releases and flooring speeches that might be considered solely by probably the most die-hard of C-SPAN viewers. However in Mr. Johnson’s sixth month in workplace, Mr. Ossoff had achieved what would turn out to be his most concrete accomplishment: He proposed and wrote a House resolution that Mr. Johnson sponsored calling for peace talks to resolve a battle in northern Uganda.

“He was involved about youngsters being manipulated and utilized in an atrocious method,” Mr. Johnson mentioned. “I knew nothing in regards to the battle earlier than he introduced it to my consideration, and as soon as he did, I believed it was a fantastic thought.”

Whereas he was at Georgetown, Mr. Ossoff sang in the campus a cappella group. Later he earned a pilot’s license in his off hours.

In 2003, Mr. Ossoff attended a small banquet together with his mom in southwestern France. At an outside desk in a plum orchard, on a stunning summer season night, Mr. Ossoff was seated throughout the desk from Ron McCullagh, a former BBC journalist who in 1991 had based Perception Information Tv.

The corporate had produced award-winning documentaries comparable to “Cry Freetown,” about Sierra Leone’s civil battle, and “Exodus,” which examined the efforts by hundreds of Africans to make their method to Europe searching for higher lives. Each movies gained Emmy Awards, amongst different prizes.

Mr. McCullagh and the teenage Jonathan Ossoff, as he known as himself then, spoke for a number of hours, resulting in a long-lasting friendship and knowledgeable relationship.

“I used to be utterly blown away by his brightness, by his intelligence and by his data,” Mr. McCullagh recalled, including how he had been struck by Mr. Ossoff’s “curiosity.”

“He informed me about his ideas on Chinese language and American relationships, the significance of the China Sea” and the “strategic significance for the world of freedom of commerce in that a part of the world,” Mr. McCullagh recounted. “And the element, data he had of the scenario was simply very spectacular. It was a really memorable dinner, and from that time on, we turned pals.”

Mr. Ossoff ended up doing an internship at Perception Information in July 2008. 5 years later, Mr. McCullagh made a daring personnel transfer: He determined to rent Mr. Ossoff — then 26, with nearly no journalism expertise — as chief government of the group and adjusted its title to Perception TWI — The World Investigates.

“It was a threat, however a calculated threat,” Mr. McCullagh mentioned. “I wished somebody to take us ahead. We wanted some new considering, and we received it.”

Mr. Ossoff invested $250,000 in Perception TWI months after he had joined, “to broaden the enterprise after Jon took over, when Jon got here to Ron with some concepts,” based on a spokeswoman for Mr. Ossoff’s marketing campaign. She mentioned that Mr. Ossoff’s funding had not been associated to his appointment as chief government. Mr. McCullagh additionally invested the identical quantity on the time.

Mr. Ossoff’s marketing campaign promotes him as an “investigative journalist,” although he doesn’t act as an investigative reporter. As chief government, he vets story concepts, helps put together interview questions and attends to movie manufacturing, modifying and safety preparations for his workers. Mr. Ossoff additionally supervises the commissioning of documentaries with information media organizations just like the BBC and Al Jazeera English.

In line with his Senate marketing campaign, Mr. Ossoff has been the manager producer of greater than two dozen Perception TWI movies on such topics as soccer corruption in Ghana and baby trafficking and sexual exploitation alongside the border of Bolivia and Argentina.

In Mr. Ossoff’s most up-to-date private monetary report, filed in July, he valued Perception TWI at between $1 million and $5 million. In line with data filed in November in Britain, he owns 75 p.c or extra of the group’s shares.

Anas Aremeyaw Anas, a Ghanaian journalist who has labored with Perception TWI, mentioned Mr. Ossoff had expanded the group’s mission of getting native reporters in Africa and different areas develop their very own tales.

“The technique was that we didn’t need parachute journalism,” Mr. Anas mentioned. “Jon believed in having native journalists in locations like Africa telling their tales and never having white males coming in.”

Diarmuid Jeffreys, supervisor of investigative applications for Al Jazeera English, known as Mr. Ossoff a “powerful negotiator” when it got here to getting Perception TWI’s work commissioned.

“He doesn’t wish to be pushed round,” Mr. Jeffreys mentioned. “He’ll stroll away if he doesn’t suppose a venture is commercially viable or if he doesn’t suppose he can ship it correctly. He gained’t simply take any gig.”

Through the years, Perception TWI has prided itself on awards it has earned. Over a 14-year stretch starting in 1999, based on its web site, the corporate logged 47 awards or situations wherein its documentaries had been finalists, “shortlisted” or nominated for prizes. The awards embody two Emmys, a Peabody and one British Academy of Movie and Tv Arts Award.

However there had been a drop-off in awards earlier than Mr. Ossoff’s tenure on the helm, and within the eight years below his management, that has not modified; the corporate has obtained simply two journalism prizes in that point.

“We now have not prioritized functions for awards,” Mr. Ossoff mentioned. “You possibly can spend a number of time making use of for awards, and that point is likely to be higher spent creating journalism.”

Sheelagh McNeill, Susan Beachy and Kitty Bennett contributed analysis.