Presidential candidate Bernie Sanders' name is not on the primary ballot in Washington, D.C., after the D.C. Democratic Party submitted registration paperwork a day late and a voter filed a challenge, News4 has learned.

D.C. party officials called the problem a minor administrative dispute.

The Sanders campaign, as well as Hillary Clinton's campaign, each submitted registration fees of $2,500 on time earlier this month in advance of the June 14 Democratic primary.

But D.C. Democrats did not email the candidates' registration information to the D.C. Board of Elections until a day after the registration deadline of March 16, News4's Tom Sherwood was first to report on Twitter.

A Democratic voter in D.C. filed a challenge against the Sanders campaign's registration. No complaint was filed against Clinton's registration.

"We did what D.C. law requires in order to get Bernie on the ballot, and we are confident he will be on the ballot," a Sanders spokesman said in a statement to News4.

Board of Elections rules call for a hearing to be held on the challenge against the inclusion of Sanders on the ballot. The hearing is expected to occur as early as next week, sources said.

D.C. Democratic Party Chairwoman Anita Bonds said the issue may be resolved through an emergency vote by the D.C. Council, if necessary. The Board of Elections could rule it was an administrative error and correct it.

A Board of Elections representative could not be reached immediately.

News4's Andrea Swalec contributed to this report.