MADRID—Spain’s Socialist prime minister, Pedro Sanchez, emerged from inconclusive elections on April 28 with a strong chance to regain power, though he faces weeks or even months of negotiations to assemble a government from a deeply divided new parliament.
In one of the country’s most hotly contested elections in decades, the rise of nationalist party Vox split the right-wing vote, echoing fragmented parliaments across Europe where traditional groups have ceded to anti-establishment upstarts.
