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Sean Eldridge, an investor and the husband of Facebook co-founder Chris Hughes, has filed paperwork establishing a campaign for New York's 19th Congressional District seat in 2014.

Eldridge, who is a frequent donor to Democratic candidates and committees, has publicly backed President Barack Obama and hopes to unseat two-term Republican Chris Gibson. This November, Gibson won reelection by a margin of 53 percent to 47 percent. However, the district also favored Obama.

Eldridge is a politically active Democrat and the CEO and founder of Hudson River Ventures LLC, a small business investment fund located in New York's Hudson Valley. He also serves as an adviser to Freedom to Marry, a campaign to win marriage equality nationwide.

The 26-year-old is married to entrepreneur Chris Hughes, who is both a co-founder of Facebook and the publisher of The New Republic magazine.

Bloomberg.com reported that Eldridge's statement of organization, which created "Sean Eldridge for Congress," accompanied by a statement of candidacy, was processed by the Federal Election Commission last week.

Born in 1986, if Eldridge wins the congressional seat, he'll be just 27, making him one of the youngest members of Congress in 2014.

Rep. Aaron Shock, a Republican from Illinois, was elected to his congressional seat when he was 27. He is now the youngest representative, at age 31.