Paul Singer, the billionaire founder of hedge fund firm Elliott Management, donated $2,700 to the Republican candidate, Karen Handel, filings show. Steve Marcus/Reuters Wall Streeters pumped money into the US' most expensive ever House race, with people tied to big-name firms donating mostly to the Republican candidate.

The election, on Tuesday, June 20, in Georgia's 6th District, an Atlanta suburb, is set to replace the House seat of Tom Price, who recently left to become the new health and human services secretary.

The race, between Democrat Jon Ossoff and Republican Karen Handel, has raised at least $56.7 million, according to the Center for Responsive Politics, which tracks money in politics. That staggering figure is nearly double the second-most expensive House election in Florida in 2012, the group says.

The Georgia election is considered a referendum on Donald Trump's win in November last year.

Among the donors is Paul Singer, the billionaire founder of New York hedge fund Elliott Management, according to a receipt filed with the Federal Election Commission. Singer donated $2,700 to Republican candidate Handel via the committee Handel for Congress.

Early tallies from the Center for Responsive Politics show that Ossoff (D) raised about $36,000 from people tied to securities and investment firms while Handel (R) raised about $16,500.

These numbers may change as CRP processes data from fresh donor filings in the coming week, and it's possible that some Wall Street donors haven't yet shown up in CRP's analysis, the group told Business Insider. Still, the data sheds light on who has put money into the race.

There are a number of donors affiliated with big Wall Street firms, including individuals tied Wells Fargo and KPMG, who all donated to the Republican candidate.

Below is a sampling from a more detailed list, per the Center for Responsive Politics. CRP notes that "the organizations themselves did not donate, rather the money came from the organizations' PACs, their individual members or employees or owners, and those individuals' immediate families."

Karen Handel (R)

Elliott Management's Paul Singer - $2,700 (per FEC filing)

PricewaterhouseCoopers - $5,000

KPMG - $5,000

Wells Fargo - $2,950

Charles Schwab Group - $2,700

Arcus Capital Partners - $5,400

Jonathan Ossoff (D)

Sol Goldman Investments - $5,400

New World Capital - $5,400

Ossoff's biggest donation – a tally of about $32,000 so far – came from people related to Emory University. Handel's biggest donors came from people affiliated with Cooper Firm, Hennessy Automotive, Northwest Excavating and Rollins Inc. They all tied with donations of $10,800 each.