Yitzhak Herzog
Yitzhak HerzogMiriam Alster/Flash 90

A senior official involved in the investigation against opposition head Yitzhak Herzog (Zionist Union) told Channel 10 that the case could soon turn into a criminal investigation.

According to the official, mounting evidence suggests that Herzog violated party financing laws.

The Zionist Union chair maintains that the entire investigation is no more than a political attack and that he did nothing wrong. "I demand that these things conclude as quickly as possible so that the truth can come to light," he said. "In the end, everything will be clear."

On his Facebook page, Herzog recently wrote, "We can't let the ghouls who are trying to use the law enforcement agencies as part of the election campaign poison us.

"In the past 48 hours something has happened that our party has not seen for many years. Our party always ensures that its leader is spotless, and that includes me. So, as far as I am concerned, there should not be an investigation. Instead, they should call me, and I will come with answers to any charge, any story. I know that I acted honestly, cleanly and in a reasonable manner, just as I have acted all my life. Being a leader means you have to deal with malicious lies."