[2][3] Four candidates ran in the closed primary election held in circle conventions: Stefano Bonaccini, Gianni Cuperlo, Paola De Micheli, and Elly Schlein.

[5] It was the PD's first party leadership election in which the winner of the members' vote lost in the open primary.

[8] After the outgoing secretary tenders their resignation, the party president must gather the members of the National Assembly within a month.

[8] On 20 February 2023, the following individuals were the two top contenders in the closed vote in party circles, thus entering the primary open to voters.

On 20 February 2023, the following individuals didn't manage to get enough votes in party circles to enter the primary open to voters.