[2] Leadership elections in the Israeli Labor Party happen in a two-round vote, with the two leading candidates from the first round advancing into a run-off.

After the elections, he joined Ehud Olmert's government as the Minister of Defense and served in that role from 2006-2007.

[3] Peretz's campaign was focused on showcasing his many endorsements by former Labor Knesset Members and other leftist figures, and made use of his iconic mustache as its logo and the slogan "Now Amir".

Peretz declared his intention to remain independent of Ehud Barak's party, and to refrain from uniting with Meretz; instead, he declared that he wishes to invite Orly Levy's Gesher, Tzipi Livni's Hatnuah, Yuval Diskin, and Gadi Eizenkot to enter a joint list with the Labor Party.

During his time in the Knesset, Shmuli was focused on matters of social justice (such as increasing funds for the elderly).

Like Barak, Shmuli supported a wide coalition including all the parties in Israel's left-centre bloc.

During her tenure in the Knesset, Shaffir focused on matters of social justice (such as rent regulation), financial transparency, and feminism.

In the primaries leading up to the April 2019 elections, Shaffir fell just short of her partner and rival Shmuli, winning the second place.

Shaffir has declared her intention to create a leftist bloc with Ehud Barak's new party, Meretz, and other leftist forces, but has criticized Shmuli for "selling the party" to Barak, and has said that she will take a harder stance on keeping Labor a major part of this bloc.