Portugal’s prime minister Pedro Passos Coelho arrives for a news conference in Berlin last night where he said he expected to quickly overcome an internal political crisis in his ruling coalition that risked triggering a snap election and derailing bailed out Lisbon’s return to market financing. Photograph: REUTERS/Tobias Schwarz.

Spanish and French borrowing costs rose today on fears that political turmoil in Portugal will reignite the euro zone debt crisis. The higher returns (...)