There can be only one?

Apparently Democrat Nia Gill has little faith that 3rd District Congressional candidate Shelley Adler has a shot to knock off her Republican opponent come November.

In a fundraising letter sent this week, the Gill campaign asked donors to “ensure that the New Jersey Congressional delegation will include at least one woman.”

“Unless Nia Gill wins, it won’t,” the email sent to prospective donors proclaims.

Gill is running in the 10th Congressional District for the seat left vacant with the death of U.S. Rep. Donald Payne. She faces a tough primary, one in which Payne’s son Donald looks to keep the seat in the family.

Adler, a Democrat, is running in the 3rd District, hoping to unseat Republican Jon Runyan.  In 2010, Runyan defeated Adler’s husband, John Adler, in a close-fought race.  John Adler died shortly after the election.

Reached Wednesday, Adler spokesman Mike Muller took the high road on the Gill camp’s slight.

“As the only Red to Blue endorsed candidate in New Jersey and the only Emily’s List recommended campaign, we hope Shelley Adler will be the first woman in more than a decade to join the delegation,” Muller said. “We hope that more will join in the next 10 years.”

And Adler is not even the only woman besides Gill running for Congress this year.

At least four other Democratic women are listed by the Federal Election Commission as candidates for Congress in various districts throughout the state.

There can be only one?