Sánchez’s Socialists and his preferred partners, Yolanda Díaz’s left-wing Sumar coalition, control 153 seats in parliament. Although the left-wing allies are unlikely to secure the backing of the 176 MPs needed for Sánchez to be confirmed as prime minister the first time the new parliament votes on the matter, they could make a bid during the second round of voting, in which the candidate to head the new government must receive more yeas than nays.