Next year’s race for the 19th congressional district will feature two new candidates.

Sean Eldridge, the wealthy Democrat who unsuccessfully last year sought to unseat Republican Rep. Chris Gibson, told Vanity Fair in a profile he won’t run again for the battleground Hudson Valley congressional seat.

The move is a potential blow to Democrats who liked his ability to tap into a network of wealthy donors, as well as TV advertising folks. Eldridge blanketed the airwaves throughout the campaign against Gibson.

“I’m not going to run again,” he told the magazine.

Eldridge spent millions on trying to win the seat, but was criticized by his GOP opponents for appearing as a carpetbagger after buying a home in the district shortly before the election.

He is expected to remain active in politics, however.

Eldridge says he will be returning his focus to LGBT rights and campaign finance reform — issues that he has championed in the past (Eldridge was among the backers of the successful effort to legalize same-sex marriage in New York and the less successful push for public financing of campaigns in the state).

“Few things have such a clear ending as a campaign,” Eldrdige told Vanity Fair.

Eldridge’s husband, Facebook co-founder and New Republic publisher Chris Hughes, is due to host a fundraiser for Hillary Clinton.

With Eldridge bowing out, Democrats have some options among local officials, including Ulster County Executive Mike Hein. Former state Sen. Terry Gipson has also been mentioned as a potential candidate.

On the Republican side, Gibson is expected to retire at the end of his current term as he considers a run for statewide office in 2018, most likely for governor.

Republicans mentioned to replace Gibson in Congress include Assemblyman Peter Lopez, Assemblyman Steve McLaughlin and Dutchess County Executive Marc Molinaro.