Factbox: Key points of Spanish pact for leftist government

Spanish acting Prime Minister Pedro Sanchez and Unidas Podemos (Together We Can) leader Pablo Iglesias shake hands during a news conference at Spain's Parliament in Madrid, Spain, November 12, 2019. REUTERS/Sergio Perez

MADRID (Reuters) - Spain's Socialist acting Prime Minister Pedro Sanchez and the leader of far-left Unidas Podemos, Pablo Iglesias, signed a preliminary agreement on Tuesday aiming to form what they called a "progressive" coalition government.

They will need more parties to join them to have a majority in parliament.