Previously popular Podemos now has stiff competition in winning the voters' favour.
In Spain, traditional approaches and parties are being swept aside to give voters a fresh vision.
The issue dominates debates, but for different reasons, from the far right making political capital to border guards pushing migrant boats back.
The Spanish government has rejected a call by Catalonia's president for the region to hold a referendum on independence.
Scandal-ridden Spanish King Juan Carlos has announced that he plans to step down and hand the royal reigns over to his popular son, Felipe.
An upstart political party made surprising gains in Spain's European elections, but it has to turn its sudden success into long-term support.
Researchers at a Spanish hospital say they will start trials next year of a therapeutic vaccine for patients who already have HIV.
One of the closest contests in Olympic history has gone down to the wire in Buenos Aires as the International Olympic Committee prepared to vote.
A Spanish train was hurtling around a curve at 179kph, more than twice the speed limit, when it leapt off the tracks in a fatal disaster.
The driver of a train wreck in Spain was responding to a phone call from the rail company when the crash took place, according to a court report.
A train has hurtled off the tracks in north-west Spain, killing at least 77 passengers and injuring more than 140, says an official.
June 16 2010 and June 30 2013 - these dates bracket an era that has come to an end in Rio for world champions Spain.
Thousands of people hush their chatter in Seville's Duque Plaza. A cloud of incense is the only sign of what approaches.
The Spanish king's son-in-law has appeared in court on allegations that he and a partner funneled away millions of euros through fraudulent deals.
Organisers of the annual beauty contest Miss Spain have filed for bankruptcy in the midst of a deep recession.
Spain are facing Davis Cup humiliation after they slumped 2-0 down to Canada, a country who have never previously won a World Group clash.
After another brutal year of economic hardship, Spaniards across the country are hoping for relief through the country's famed Christmas lottery.
Catalonia's latest election brings increased social polarity that could spread beyond politics, writes Giles Tremlett.
Age-old tensions have resurfaces as the country buckles under harsh austerity measures.