Less than three weeks before a snap national election that could catapult the far-right to power, millions of Spain’s workers were striking on Wednesday to demand that the government remedy the nation’s housing crisis. They set up picket lines despite stormy weather in a mass protest against housing affordability. The general strike – Spain’s first in 14 years – was causing delays in the public transport system and slowing down factories across the euro zone’s fourth-largest economy. Many...