The incumbent Basque nationalists won the most seats in Basque regional parliamentary elections on Sunday, but they could lose a 29-year hold on power because three non-nationalist parties won a combined majority for the first time, according to official election results. The vote for the powerful 75-seat regional parliament and Basque president are seen as a bellwether of the region’s sentiment on how to end decades of violence by the Basque separatist group ETA