Yitzhak Herzog
Yitzhak HerzogYonatan Sindel/Flash90

The Zionist Union’s beleaguered chief Yitzhak Herzog received yet another sign on Sunday that his tenure at the helm of Israel’s second largest party may be coming to an end.

While a poll of Zionist Union voters showed Herzog would face a humiliating third-place defeat if a party primary were held today, general election polling released on Sunday shows the Zionist Union falling to an all-time low of eight seats.

The poll, conducted by Geocartography for Radio Kol Hai shows the left-wing Zionist Union party falling to just eight seats from the 24 it won in 2015.

The results of Sunday’s poll were the Zionist Union’s worst in any poll since the March 2015 election.

If the party did indeed sink to eight seats, it would be the worst performance in the history of the Labor Party or its predecessor, Mapai. The Zionist Union was formed ahead of the 2015 election as an amalgamation of Labor and Tzipi Livni’s Hatnua faction.

According to the poll, the Zionist Union, which is currently the second largest faction in the Knesset, would sink to a three-way tie for sixth, falling behind Jewish Home and United Torah Judaism (UTJ).

Likud would remain on top, dropping from 30 to 27 seats.

The far-left Meretz party would gain three seats, rising from five to eight mandates. The anti-Zionist Arab Joint List would remain at 13 seats.

Former Finance Minister Yair Lapid’s Yesh Atid party gained substantially according to the poll, rising from 11 seats at present to 21 seats, benefiting primarily from the collapse in support for the Zionist Union.

Moshe Kahlon’s Kulanu would slip from 10 seats to seven if an election were held today, while incoming Defense Minister Avigdor Liberman’s Yisrael Beytenu would rise from six to eight mandates.

The Jewish Home, which plummeted from 12 seats in 2013 to just eight in 2015, would surpass its previous level of support, winning 14 seats.

Support for the two haredi parties, Shas and UTJ, would remain relatively stable, rising from a total of 13 seats at present to 14 seats. The relative strength of the two factions would change dramatically, however, with UTJ surging from six seats to 10, while Shas continues to slide, falling from seven seats to just four, barely passing the minimum electoral threshold.