An ongoing class-action lawsuit against the Democratic National Committee related to last year's presidential election just took a turn for the weird and now involves the Capitol Police.

Since the summer of last year, a group of people who supported the campaign for Sen. Bernie Sanders, I-Vt., have been waging a legal battle against the DNC for alleged fraud, claiming the DNC and then-chair Debbie Wasserman Schultz worked to undermine Sanders in favor of Hillary Clinton.

A court document filed this week with the U.S. District Court for the Southern District of Florida by their attorneys said that they received a call for information about the case from the office of Wasserman Schultz, a Democratic congresswoman from Florida, and claimed that it sounded like the caller used a voice changer.

According to attorney Elizabeth Lee Beck: "At 4:54 p.m. today [June 1], an individual called our law office from '305-936-5724.'" That number is the contact phone number for Wasserman Schultz's Aventura office in Florida.

"My secretary stated that it sounded like the caller was using a voice changer, because the voice sounded robotic and genderless — along the lines of the voice changers used when television show interviews are kept anonymous," Beck continued. "The caller concluded with 'Okey dokey,' after my secretary gave the caller public information about the case. After the call ended, a simple Google search of the phone number '305-936-5724' shows that it is the phone number for Congresswoman Debbie Wasserman Schultz' Aventura office ... What just occurred is highly irregular and we will be filing the instant e-mail with the court forthwith."

Beck also included a screen shot of the caller ID information.

Lawyers representing the defendants claim that no one in Wasserman Schultz's office, including the congresswoman herself, has any knowledge of the call. They also contend that there is no one working in Wasserman Schultz's Aventura office currently "due to ongoing repairs."

Because the incident is related to congressional phone lines it was reported to Capitol Police, the document added.