ATHENS, Greece (AP) — Greece’s rickety coalition government faces its first electoral test in local and regional voting Sunday — followed in a week by the nationwide European parliamentary elections that the left-wing opposition has billed as a referendum on the country’s bailout.

Much has changed in the two years since Prime Minister Antonis Samaras’ governing conservatives won a slim victory in a parliamentary election. In mid-2012, the debt-hobbled country was on the brink of a possible chaotic exit from the group of European countries using the euro currency, amid deep political and financial instability.